Table of Contents
163 relations: Acetic acid, Activation energy, Alcohol (chemistry), Alkane, Allotropy, Amino acid, Ammonium cyanate, Amphetamine, Anti-inflammatory, Atom, Atropisomer, Back-formation, Benzene, Biochemistry, Biological activity, Biphenyl, Bond energy, Bromochlorofluoromethane, Bronchodilator, Butane, Caffeine, Cahn–Ingold–Prelog priority rules, Carbon peapod, Carboxylic acid, Catalysis, Catenane, ChemComm, Chemical bond, Chemical compound, Chemical element, Chemical formula, Chemical property, Chemistry, Chiral resolution, Chirality, Chirality (chemistry), Chlorine, Chlorofluoromethane, Chromatography, Cis–trans isomerism, Cisplatin, Conformational isomerism, Coordination complex, Cyanate, Cyclic compound, Cyclohexane, Cyclohexane conformation, Cyclopropene, Delocalized electron, Descriptor (chemistry), ... Expand index (113 more) »
- 1827 introductions
- Isomerism
Acetic acid
Acetic acid, systematically named ethanoic acid, is an acidic, colourless liquid and organic compound with the chemical formula (also written as,, or). Vinegar is at least 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water.
Activation energy
In the Arrhenius model of reaction rates, activation energy is the minimum amount of energy that must be available to reactants for a chemical reaction to occur.
See Isomer and Activation energy
Alcohol (chemistry)
In chemistry, an alcohol is a type of organic compound that carries at least one hydroxyl functional group bound to carbon.
See Isomer and Alcohol (chemistry)
Alkane
In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon.
Allotropy
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements.
Amino acid
Amino acids are organic compounds that contain both amino and carboxylic acid functional groups.
Ammonium cyanate
Ammonium cyanate is an inorganic compound with the formula.
See Isomer and Ammonium cyanate
Amphetamine
Amphetamine (contracted from alpha-methylphenethylamine) is a central nervous system (CNS) stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD), narcolepsy, and obesity.
Anti-inflammatory
Anti-inflammatory or antiphlogistic is the property of a substance or treatment that reduces inflammation or swelling.
See Isomer and Anti-inflammatory
Atom
Atoms are the basic particles of the chemical elements.
See Isomer and Atom
Atropisomer
Atropisomers are stereoisomers arising because of hindered rotation about a single bond, where energy differences due to steric strain or other contributors create a barrier to rotation that is high enough to allow for isolation of individual conformers.
Back-formation
In etymology, back-formation is the process or result of creating a new word via inflection, typically by removing or substituting actual or supposed affixes from a lexical item, in a way that expands the number of lexemes associated with the corresponding root word.
Benzene
Benzene is an organic chemical compound with the molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar hexagonal ring with one hydrogen atom attached to each. Because it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon. Benzene is a natural constituent of petroleum and is one of the elementary petrochemicals.
Biochemistry
Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms.
Biological activity
In pharmacology, biological activity or pharmacological activity describes the beneficial or adverse effects of a drug on living matter.
See Isomer and Biological activity
Biphenyl
Biphenyl (also known as diphenyl, phenylbenzene, 1,1′-biphenyl, lemonene or BP) is an organic compound that forms colorless crystals.
Bond energy
In chemistry, bond energy (BE) is one measure of the strength of a chemical bond.
Bromochlorofluoromethane
Bromochlorofluoromethane or fluorochlorobromomethane, is a chemical compound and trihalomethane derivative with the chemical formula CHBrClF.
See Isomer and Bromochlorofluoromethane
Bronchodilator
A bronchodilator or broncholytic (although the latter occasionally includes secretory inhibition as well) is a substance that dilates the bronchi and bronchioles, decreasing resistance in the respiratory airway and increasing airflow to the lungs.
Butane
Butane or n-butane is an alkane with the formula C4H10.
Caffeine
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class.
Cahn–Ingold–Prelog priority rules
In organic chemistry, the Cahn–Ingold–Prelog (CIP) sequence rules (also the CIP priority convention; named after Robert Sidney Cahn, Christopher Kelk Ingold, and Vladimir Prelog) are a standard process to completely and unequivocally name a stereoisomer of a molecule.
See Isomer and Cahn–Ingold–Prelog priority rules
Carbon peapod
Carbon peapod is a hybrid nanomaterial consisting of spheroidal fullerenes encapsulated within a carbon nanotube.
Carboxylic acid
In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group attached to an R-group.
See Isomer and Carboxylic acid
Catalysis
Catalysis is the increase in rate of a chemical reaction due to an added substance known as a catalyst.
Catenane
In macromolecular chemistry, a catenane is a mechanically interlocked molecular architecture consisting of two or more interlocked macrocycles, i.e. a molecule containing two or more intertwined rings.
ChemComm
ChemComm (or Chemical Communications), formerly known as Journal of the Chemical Society D: Chemical Communications (1969–1971), Journal of the Chemical Society, Chemical Communications (1972–1995), is a peer-reviewed scientific journal published by the Royal Society of Chemistry.
Chemical bond
A chemical bond is the association of atoms or ions to form molecules, crystals, and other structures.
Chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds.
See Isomer and Chemical compound
Chemical element
A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions.
See Isomer and Chemical element
Chemical formula
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
See Isomer and Chemical formula
Chemical property
A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
See Isomer and Chemical property
Chemistry
Chemistry is the scientific study of the properties and behavior of matter.
Chiral resolution
Chiral resolution, or enantiomeric resolution, is a process in stereochemistry for the separation of racemic mixture into their enantiomers.
See Isomer and Chiral resolution
Chirality
Chirality is a property of asymmetry important in several branches of science.
Chirality (chemistry)
In chemistry, a molecule or ion is called chiral if it cannot be superposed on its mirror image by any combination of rotations, translations, and some conformational changes.
See Isomer and Chirality (chemistry)
Chlorine
Chlorine is a chemical element; it has symbol Cl and atomic number 17.
Chlorofluoromethane
Chlorofluoromethane or Freon 31 is the hydrochlorofluorocarbon (HCFC) with the formula CH2ClF.
See Isomer and Chlorofluoromethane
Chromatography
In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components.
Cis–trans isomerism
Cis–trans isomerism, also known as geometric isomerism, describes certain arrangements of atoms within molecules. Isomer and Cis–trans isomerism are isomerism.
See Isomer and Cis–trans isomerism
Cisplatin
Cisplatin is a chemical compound with formula cis-.
Conformational isomerism
In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted just by rotations about formally single bonds (refer to figure on single bond rotation). Isomer and conformational isomerism are isomerism.
See Isomer and Conformational isomerism
Coordination complex
A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents.
See Isomer and Coordination complex
Cyanate
The cyanate ion is an anion with the chemical formula.
Cyclic compound
A cyclic compound (or ring compound) is a term for a compound in the field of chemistry in which one or more series of atoms in the compound is connected to form a ring.
See Isomer and Cyclic compound
Cyclohexane
Cyclohexane is a cycloalkane with the molecular formula.
Cyclohexane conformation
Cyclohexane conformations are any of several three-dimensional shapes adopted by molecules of cyclohexane.
See Isomer and Cyclohexane conformation
Cyclopropene
Cyclopropene is an organic compound with the formula.
Delocalized electron
In chemistry, delocalized electrons are electrons in a molecule, ion or solid metal that are not associated with a single atom or a covalent bond.
See Isomer and Delocalized electron
Descriptor (chemistry)
In chemical nomenclature, a descriptor is a notational prefix placed before the systematic substance name, which describes the configuration or the stereochemistry of the molecule.
See Isomer and Descriptor (chemistry)
Deuterium
Deuterium (hydrogen-2, symbol H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other is protium, or hydrogen-1).
Diastereomer
In stereochemistry, diastereomers (sometimes called diastereoisomers) are a type of stereoisomer. Isomer and diastereomer are isomerism.
Dimerization (chemistry)
In chemistry, dimerization is the process of joining two identical or similar molecular entities by bonds.
See Isomer and Dimerization (chemistry)
DNA
Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix.
See Isomer and DNA
Dodecahedrane
Dodecahedrane is a chemical compound, a hydrocarbon with formula, whose carbon atoms are arranged as the vertices (corners) of a regular dodecahedron.
Double bond
In chemistry, a double bond is a covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond.
Electromerism
Electromerism is a type of isomerism between a pair of molecules (electromers, electro-isomers) differing in the way electrons are distributed among the atoms and the connecting chemical bonds. Isomer and Electromerism are isomerism.
Enantiomer
In chemistry, an enantiomer (/ɪˈnænti.əmər, ɛ-, -oʊ-/ ''ih-NAN-tee-ə-mər''; from Ancient Greek ἐναντίος (enantíos) 'opposite', and μέρος (méros) 'part') – also called optical isomer, antipode, or optical antipode – is one of two stereoisomers that are nonsuperposable onto their own mirror image. Isomer and enantiomer are isomerism.
Enantioselective synthesis
Enantioselective synthesis, also called asymmetric synthesis, is a form of chemical synthesis.
See Isomer and Enantioselective synthesis
Energy
Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.
Enol
In organic chemistry, alkenols (shortened to enols) are a type of reactive structure or intermediate in organic chemistry that is represented as an alkene (olefin) with a hydroxyl group attached to one end of the alkene double bond.
See Isomer and Enol
Enzyme
Enzymes are proteins that act as biological catalysts by accelerating chemical reactions.
Ernest L. Eliel
Ernest Ludwig Eliel (December 28, 1921 – September 18, 2008) was an organic chemist born in Cologne, Germany.
See Isomer and Ernest L. Eliel
Ethane
Ethane is a naturally occurring organic chemical compound with chemical formula.
Ether
In organic chemistry, ethers are a class of compounds that contain an ether group—an oxygen atom bonded to two organyl groups (e.g., alkyl or aryl).
See Isomer and Ether
Food science
Food science is the basic science and applied science of food; its scope starts at overlap with agricultural science and nutritional science and leads through the scientific aspects of food safety and food processing, informing the development of food technology.
Friedrich Wöhler
Friedrich Wöhler FRS(For) HonFRSE (31 July 180023 September 1882) was a German chemist known for his work in both organic and inorganic chemistry, being the first to isolate the chemical elements beryllium and yttrium in pure metallic form.
See Isomer and Friedrich Wöhler
Fulminate
Fulminates are chemical compounds which include the fulminate ion.
Fumaric acid
Fumaric acid is an organic compound with the formula HO2CCH.
Functional group
In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions.
See Isomer and Functional group
German language
German (Standard High German: Deutsch) is a West Germanic language in the Indo-European language family, mainly spoken in Western and Central Europe. It is the most widely spoken and official or co-official language in Germany, Austria, Switzerland, Liechtenstein, and the Italian province of South Tyrol.
See Isomer and German language
Glucose
Glucose is a sugar with the molecular formula.
Greek language
Greek (Elliniká,; Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, Italy (in Calabria and Salento), southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean.
Halogen
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Helium
Helium (from lit) is a chemical element; it has symbol He and atomic number 2.
Hierarchy
A hierarchy (from Greek:, from, 'president of sacred rites') is an arrangement of items (objects, names, values, categories, etc.) that are represented as being "above", "below", or "at the same level as" one another.
Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.
Hydrogen
Hydrogen is a chemical element; it has symbol H and atomic number 1.
Hydrogen bond
In chemistry, a hydrogen bond (or H-bond) is primarily an electrostatic force of attraction between a hydrogen (H) atom which is covalently bonded to a more electronegative "donor" atom or group (Dn), and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac).
Hydrogen peroxide
Hydrogen peroxide is a chemical compound with the formula.
See Isomer and Hydrogen peroxide
Hydroxy group
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula and composed of one oxygen atom covalently bonded to one hydrogen atom.
Inclusion compound
In host–guest chemistry, an inclusion compound (also known as an inclusion complex) is a chemical complex in which one chemical compound (the "host") has a cavity into which a "guest" compound can be accommodated.
See Isomer and Inclusion compound
Inositol
In biochemistry, medicine, and related sciences, inositol generally refers to myo-inositol (formerly meso-inositol), the most important stereoisomer of the chemical compound cyclohexane-1,2,3,4,5,6-hexol.
International Union of Pure and Applied Chemistry
The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations working for the advancement of the chemical sciences, especially by developing nomenclature and terminology.
See Isomer and International Union of Pure and Applied Chemistry
Intramolecular reaction
In chemistry, intramolecular describes a process or characteristic limited within the structure of a single molecule, a property or phenomenon limited to the extent of a single molecule.
See Isomer and Intramolecular reaction
Isopropyl alcohol
Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable organic compound with a pungent alcoholic odor.
See Isomer and Isopropyl alcohol
Isotopologue
In chemistry, isotopologues are molecules that differ only in their isotopic composition.
Isotopomer
Isotopomers or isotopic isomers are isomers which differ by isotopic substitution, and which have the same number of atoms of each isotope but in a different arrangement. Isomer and Isotopomer are isomerism.
Jöns Jacob Berzelius
Baron Jöns Jacob Berzelius ((20 August 1779 – 7 August 1848) was a Swedish chemist. In general, he is considered the last person to know the whole field of chemistry. Berzelius is considered, along with Robert Boyle, John Dalton, and Antoine Lavoisier, to be one of the founders of modern chemistry.
See Isomer and Jöns Jacob Berzelius
Joule
The joule (pronounced, or; symbol: J) is the unit of energy in the International System of Units (SI).
See Isomer and Joule
Journal of Chemical Education
The Journal of Chemical Education is a monthly peer-reviewed academic journal available in both print and electronic versions.
See Isomer and Journal of Chemical Education
Justus von Liebig
Justus Freiherr (Baron) von Liebig (12 May 1803 – 20 April 1873) was a German scientist who made major contributions to the theory, practice, and pedagogy of chemistry, as well as to agricultural and biological chemistry; he is considered one of the principal founders of organic chemistry.
See Isomer and Justus von Liebig
Knot theory
In topology, knot theory is the study of mathematical knots.
Ligand isomerism
In coordination chemistry, ligand isomerism is a type of structural isomerism in coordination complexes which arises from the presence of ligands which can adopt different isomeric forms.
See Isomer and Ligand isomerism
Linkage isomerism
In chemistry, linkage isomerism or ambidentate isomerism is a form of isomerism in which certain coordination compounds have the same composition but differ in their metal atom's connectivity to a ligand. Isomer and linkage isomerism are isomerism.
See Isomer and Linkage isomerism
Louis Pasteur
Louis Pasteur (27 December 1822 – 28 September 1895) was a French chemist, pharmacist, and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization, the last of which was named after him.
Maleic acid
Maleic acid or cis-butenedioic acid is an organic compound that is a dicarboxylic acid, a molecule with two carboxyl groups.
Maximum and minimum
In mathematical analysis, the maximum and minimum of a function are, respectively, the largest and smallest value taken by the function.
See Isomer and Maximum and minimum
Medicinal chemistry
Medicinal or pharmaceutical chemistry is a scientific discipline at the intersection of chemistry and pharmacy involved with designing and developing pharmaceutical drugs.
See Isomer and Medicinal chemistry
Merosity
Merosity (from the greek "méros," which means "having parts") refers to the number of component parts in a distinct whorl of a plant structure.
Methamphetamine
Methamphetamine (contracted from) is a potent central nervous system (CNS) stimulant that is mainly used as a recreational drug and less commonly as a second-line treatment for attention deficit hyperactivity disorder and obesity.
See Isomer and Methamphetamine
Methoxyethane
Methoxyethane, also known as ethyl methyl ether, is a colorless gaseous ether with the formula.
Methyl group
In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula (whereas normal methane has the formula). In formulas, the group is often abbreviated as Me.
Microwave spectroscopy
Microwave spectroscopy is the spectroscopy method that employs microwaves, i.e. electromagnetic radiation at GHz frequencies, for the study of matter.
See Isomer and Microwave spectroscopy
Molecular vibration
A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged.
See Isomer and Molecular vibration
Molecule
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.
Nuclear isomer
A nuclear isomer is a metastable state of an atomic nucleus, in which one or more nucleons (protons or neutrons) occupy excited state (higher energy) levels.
O-Xylene
o-Xylene (ortho-xylene) is an aromatic hydrocarbon with the formula C6H4(CH3)2, with two methyl substituents bonded to adjacent carbon atoms of a benzene ring (the ortho configuration).
Octahedral molecular geometry
In chemistry, octahedral molecular geometry, also called square bipyramidal, describes the shape of compounds with six atoms or groups of atoms or ligands symmetrically arranged around a central atom, defining the vertices of an octahedron.
See Isomer and Octahedral molecular geometry
Organometallic chemistry
Organometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkali, alkaline earth, and transition metals, and sometimes broadened to include metalloids like boron, silicon, and selenium, as well.
See Isomer and Organometallic chemistry
Oxygen
Oxygen is a chemical element; it has symbol O and atomic number 8.
Pentadiene
In organic chemistry, pentadiene is any hydrocarbon with an open chain of five carbons, connected by two single bonds and two double bonds.
Phenethylamine
Phenethylamine (PEA) is an organic compound, natural monoamine alkaloid, and trace amine, which acts as a central nervous system stimulant in humans.
Phentermine
Phentermine (phenyl-tertiary-butyl amine), sold under the brand name Ionamin among others, is a medication used together with diet and exercise to treat obesity.
Phenyl group
In organic chemistry, the phenyl group, or phenyl ring, is a cyclic group of atoms with the formula, and is often represented by the symbol Ph (archaically φ).
Phosphorus
Phosphorus is a chemical element; it has symbol P and atomic number 15.
Physical property
A physical property is any property of a physical system that is measurable.
See Isomer and Physical property
Picosecond
A picosecond (abbreviated as ps) is a unit of time in the International System of Units (SI) equal to 10−12 or (one trillionth) of a second.
Plasmid
A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently.
Polarization (waves)
italics (also italics) is a property of transverse waves which specifies the geometrical orientation of the oscillations.
See Isomer and Polarization (waves)
Polyatomic ion
A polyatomic ion (also known as a molecular ion) is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero.
Propadiene
Propadiene or allene is the organic compound with the formula.
Propane
Propane is a three-carbon alkane with the molecular formula.
Propanol
There are two isomers of propanol.
Propyne
Propyne (methylacetylene) is an alkyne with the chemical formula.
Quantum tunnelling
In physics, quantum tunnelling, barrier penetration, or simply tunnelling is a quantum mechanical phenomenon in which an object such as an electron or atom passes through a potential energy barrier that, according to classical mechanics, should not be passable due to the object not having sufficient energy to pass or surmount the barrier.
See Isomer and Quantum tunnelling
Rearrangement reaction
In organic chemistry, a rearrangement reaction is a broad class of organic reactions where the carbon skeleton of a molecule is rearranged to give a structural isomer of the original molecule.
See Isomer and Rearrangement reaction
Resonance (chemistry)
In chemistry, resonance, also called mesomerism, is a way of describing bonding in certain molecules or polyatomic ions by the combination of several contributing structures (or forms, also variously known as resonance structures or canonical structures) into a resonance hybrid (or hybrid structure) in valence bond theory.
See Isomer and Resonance (chemistry)
Right-hand rule
In mathematics and physics, the right-hand rule is a convention and a mnemonic, utilized to define the orientation of axes in three-dimensional space and to determine the direction of the cross product of two vectors, as well as to establish the direction of the force on a current-carrying conductor in a magnetic field.
See Isomer and Right-hand rule
RNA
Ribonucleic acid (RNA) is a polymeric molecule that is essential for most biological functions, either by performing the function itself (non-coding RNA) or by forming a template for the production of proteins (messenger RNA).
See Isomer and RNA
Rotation (mathematics)
Rotation in mathematics is a concept originating in geometry.
See Isomer and Rotation (mathematics)
Silver cyanate
Silver cyanate is the cyanate salt of silver.
Silver fulminate
Silver fulminate (AgCNO) is the highly explosive silver salt of fulminic acid.
See Isomer and Silver fulminate
Spin isomers of hydrogen
Molecular hydrogen occurs in two isomeric forms, one with its two proton nuclear spins aligned parallel (orthohydrogen), the other with its two proton spins aligned antiparallel (parahydrogen).
See Isomer and Spin isomers of hydrogen
Spin quantum number
In physics and chemistry, the spin quantum number is a quantum number (designated) that describes the intrinsic angular momentum (or spin angular momentum, or simply ''spin'') of an electron or other particle.
See Isomer and Spin quantum number
Square planar molecular geometry
In chemistry, the square planar molecular geometry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds.
See Isomer and Square planar molecular geometry
Stereocenter
In stereochemistry, a stereocenter of a molecule is an atom (center), axis or plane that is the focus of stereoisomerism; that is, when having at least three different groups bound to the stereocenter, interchanging any two different groups creates a new stereoisomer.
Stereoisomerism
In stereochemistry, stereoisomerism, or spatial isomerism, is a form of isomerism in which molecules have the same molecular formula and sequence of bonded atoms (constitution), but differ in the three-dimensional orientations of their atoms in space. Isomer and stereoisomerism are isomerism.
See Isomer and Stereoisomerism
Steric effects
Steric effects arise from the spatial arrangement of atoms.
Structural isomer
In chemistry, a structural isomer (or constitutional isomer in the IUPAC nomenclature) of a compound is another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them. Isomer and structural isomer are isomerism.
See Isomer and Structural isomer
Swedish language
Swedish (svenska) is a North Germanic language from the Indo-European language family, spoken predominantly in Sweden and in parts of Finland.
See Isomer and Swedish language
Tartaric acid
Tartaric acid is a white, crystalline organic acid that occurs naturally in many fruits, most notably in grapes but also in tamarinds, bananas, avocados, and citrus.
Tautomer
Tautomers are structural isomers (constitutional isomers) of chemical compounds that readily interconvert. Isomer and Tautomer are isomerism.
Theobromine
Theobromine, also known as xantheose, is the principal alkaloid of Theobroma cacao (cacao plant). Theobromine is slightly water-soluble (330 mg/L) with a bitter taste. In industry, theobromine is used as an additive and precursor to some cosmetics. It is found in chocolate, as well as in a number of other foods, including tea (Camellia sinensis), some American hollies (yaupon and guayusa) and the kola nut.
Theophylline
Theophylline, also known as 1,3-dimethylxanthine, is a drug that inhibits phosphodiesterase and blocks adenosine receptors.
Thermal energy
The term "thermal energy" is used loosely in various contexts in physics and engineering, generally related to the kinetic energy of vibrating and colliding atoms in a substance.
Topoisomer
Topoisomers or topological isomers are molecules with the same chemical formula and stereochemical bond connectivities but different topologies.
Topoisomerase
DNA topoisomerases (or topoisomerases) are enzymes that catalyze changes in the topological state of DNA, interconverting relaxed and supercoiled forms, linked (catenated) and unlinked species, and knotted and unknotted DNA.
Topology
Topology (from the Greek words, and) is the branch of mathematics concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing holes, opening holes, tearing, gluing, or passing through itself.
Trans-Cyclooctene
trans-Cyclooctene is a cyclic hydrocarbon with the formula, where the two C–C single bonds adjacent to the double bond are on opposite sides of the latter's plane.
See Isomer and Trans-Cyclooctene
Transition metal
In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded.
See Isomer and Transition metal
Translation (geometry)
In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction.
See Isomer and Translation (geometry)
Transplatin
trans-Dichlorodiammineplatinum(II) is the trans isomer of the coordination complex with the formula trans-PtCl2(NH3)2, sometimes called transplatin.
Trigonal bipyramidal molecular geometry
In chemistry, a trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular bipyramid.
See Isomer and Trigonal bipyramidal molecular geometry
Triple bond
A triple bond in chemistry is a chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond.
Urea
Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula.
See Isomer and Urea
Valence (chemistry)
In chemistry, the valence (US spelling) or valency (British spelling) of an atom is a measure of its combining capacity with other atoms when it forms chemical compounds or molecules.
See Isomer and Valence (chemistry)
Vasodilation
Vasodilation, also known as vasorelaxation, is the widening of blood vessels.
Vitamer
Vitamins occur in a variety of related forms known as vitamers.
Xanthine
Xanthine (or, from Ancient Greek due to its yellowish-white appearance; archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms.
Zwitterion
In chemistry, a zwitterion, also called an inner salt or dipolar ion, is a molecule that contains an equal number of positively and negatively charged functional groups.
1,2-Dichloroethane
The chemical compound 1,2-dichloroethane, commonly known as ethylene dichloride (EDC), is a chlorinated hydrocarbon.
See Isomer and 1,2-Dichloroethane
1-Propanol
1-Propanol (also propan-1-ol, propanol, n-propyl alcohol) is a primary alcohol with the formula and sometimes represented as PrOH or n-PrOH.
See also
1827 introductions
Isomerism
- 1,2,3-Cyclohexatriene
- A value
- Akamptisomer
- Bond stretch isomer
- Cis–trans isomerism
- Claus' benzene
- Conformational isomerism
- Coordination isomerism
- Diastereomer
- Electromerism
- Enantiomer
- Favipiravir
- Hydration isomerism
- Isomer
- Isotopomer
- Linkage isomerism
- List of isomers of decane
- List of isomers of nonane
- List of isomers of tetradecane
- List of isomers of tridecane
- List of isomers of undecane
- Metamerism (chemistry)
- Ortho effect
- Proline isomerization in epigenetics
- Stereoisomerism
- Structural isomer
- Tautomer
- Valence isomer
References
Also known as Chemical isomer, Isomeric, Isomerism, Isomerized, Isomerizing, Isomers, Molecular isomerism.