n
(organic chemistry) A polycyclic aromatic hydrocarbon containing an unsaturated five-membered ring ortho- and peri-fused to the 1- and 9- positions of anthracene
n
(organic chemistry) Any cyclophane in which the para positions of a benzene ring are connected by a bridge of at least 10 atoms.
n
(organic chemistry) An organometallic heterocyclic compound formally derived from benzene by substituting one carbon and hydrogen atom with antimony.
n
(organic chemistry) The heterocycle formally derived from phenanthridine by replacing the nitrogen atom with one or arsenic
n
(chemistry) the arsenic analogue of a carbene R-As:
n
(organic chemistry) The six-membered aromatic heterocycle containing four carbon atoms, one nitrogen atom and one arsenic atom
n
(organic chemistry) A saturated seven-membered heterocycle having six carbon atoms and one arsenic atom.
n
(organic chemistry) Any of a class of aromatic heterocyclic compounds containing a ring of five carbon atoms and an arsenic atom; especially the simplest one, C₅H₅As.
n
(organic chemistry) The heterocycle formally derived from quinoline by replacing the nitrogen atom with one or arsenic
n
(organic chemistry) Any derivative of a cyclophane in which one or more CH groups have been replaced by a nitrogen atom
n
(organic chemistry) Any monocyclic heterocycle having two carbon atoms, one nitrogen and one arsenic atom and one double bond
n
(organic chemistry) A saturated seven-membered heterocycle having six carbon atoms and one nitrogen atom
n
(organic chemistry) An unsaturated four-membered heterocycle having three carbon atoms, one nitrogen atom and one double bond
n
(organic chemistry) Any chromophore containing an azo (-N=N-) group
n
(organic chemistry) A saturated heterocycle that has eight carbon atoms and a nitrogen atom
n
(organic chemistry) Any azo derivative of naphthalene
n
(organic chemistry, medicine) Any azo derivative of a ketone, but especially any of a family of aliphatic azo derivatives of cycloheptanone that are used to increase the permeability of skin in order to facilitate drug uptake
n
(organic chemistry) An unsaturated heterocycle that has eight carbon atoms, a nitrogen atom, and four double bonds.
n
(organic chemistry) Any arenium ion derived from benzene or its derivatives.
n
(chemistry, obsolete) benzenium
n
(organic chemistry) Any bicyclic organic heterocycle having a structure in which the nitrogen of a benzoxazole has been replaced by boron
n
Alternative spelling of benzylidene [(organic chemistry) The bivalent aromatic radical C₆H₅-CH=.]
n
(organic chemistry) Any compound containing a substructure that is an assembly of two aromatic rings or aryl groups, if joined by a single bond.
n
(organic chemistry, countable) Any substituted or otherwise altered version of biphenyl, such as PCBs
n
A theoretical heterocyclic organic compound, a five-membered ring with the formula C₄H₄BH.
n
(organic chemistry) The system of hydrocarbon rings in a specific class of compounds.
n
(organic chemistry) An unsaturated (but not wholly aromatic) heterocycle that has two carbon atoms, two nitrogen, two boron atoms and three partially delocalised double bonds
n
(organic chemistry) Any unstable derivative of a carborane having a C=C double bond
n
(organic chemistry) Any chloro derivative of an acetyl group
n
(chemistry) A sandwich compound chemical containing ruthenium sandwiched between a cyclopentadienyl group, and a cyclopentadienyl group with a propyl side chain. used in chemical vapour deposition.
n
(chemistry) any compound having a ring of alternating silicon and oxygen atoms, especially -[SiH₂-O]ₙ- or its derivatives
n
(organic chemistry) Any six-membered aromatic heterocycle containing four carbon atoms, two arsenic atoms and three double bonds
n
(organic chemistry) An unsaturated five-membered heterocycle having three carbon atoms, two arsenic atoms and two double bonds
adj
(organic chemistry) Describing a diaryl derivative of a heterocyclic compound
n
(organic chemistry) Any six-membered aromatic heterocycle containing four carbon atoms, two nitrogen atoms and three double bonds
n
(organic chemistry) Any dichloro derivative of toluene
n
(organic chemistry, in combination) A dihalo derivative of a methyl group
n
(organic chemistry) The organometallic compound of zinc (CH₃)₂Zn that is used in organic synthesis
n
(organic chemistry) A saturated seven-membered heterocycle containing five carbon atoms and two oxygen atoms
n
(organic chemistry) A seven-membered heterocycle containing five carbon atoms, two oxygen atoms and two double bonds
n
(organic chemistry) Any of a class of saturated heterocycles having a three-membered ring, one carbon atom and two oxygen atoms
n
(organic chemistry, especially in combination) dioxolane
n
(organic chemistry, in combination) Any of a class of organic compound derived from thiophene in which two substituents are attached to its ring via two oxygen atoms
n
(organic chemistry) A saturated seven-membered heterocycle containing five carbon atoms and two phosphorus atoms
n
(organic chemistry) An unsaturated seven-membered heterocycle containing five carbon atoms, two phosphorus atoms and three double bonds
n
(organic chemistry) A saturated six-membered heterocycle containing four carbon atoms and two phosphorus atoms
n
(organic chemistry) A saturated three-membered heterocycle containing one carbon atom and two phosphorus atoms
n
(organic chemistry) A saturated eight-membered heterocycle containing six carbon atoms and two phosphorus atoms
n
(organic chemistry) An unsaturated five-membered heterocycle containing three carbon atoms, two phosphorus atoms and two double bonds
n
(organic chemistry) Any of three isomeric six-membered saturated heterocycles having four carbon atoms and two sulfur atoms; any derivative of these compounds.
n
(organic chemistry) A saturated seven-membered heterocycle containing five carbon atoms and two sulfur atoms
n
(organic chemistry) Any of a class of heterocycle having a four-membered ring with two carbon atoms and two sulfur atoms
n
(organic chemistry) An unsaturated heterocycle that has two carbon atoms, two sulfur atoms and a double bond
n
(organic chemistry) The unsaturated six-membered heterocycle containing four carbon atoms, two sulfur atoms and two double bonds
n
(organic chemistry) A saturated three-membered heterocycle containing one carbon atom and two sulfur atoms
n
(organic chemistry) Any of four isomeric, saturated, eight-membered heterocycles having six carbon atoms and two sulfur atoms
n
(organic chemistry) Either of two isomeric saturated heterocycles containing three carbon atoms and two sulfur atoms
n
Alternative form of epibromohydrin [(chemistry) any epihalohydrin in which the halogen is bromine]
n
(organic chemistry) Any fluoro derivative of a phenol
adj
(chemistry) Having a heterocyclic form with a ring of four carbon atoms, two double bonds and an oxygen atom.
n
(chemistry) An allotrope of carbon, related to graphene, consisting of a plane of benzene rings, each connected to six others by acetylene moieties.
n
(organic chemistry) Any halogenated enone
n
(organic chemistry) Abbreviation of hexabromocyclododecane. [(organic chemistry) Any hexabromo drivative of cyclododecane, but especially 1,2,5,6,9,10-hexabromocyclododecane that is used as a flame retardant.]
n
(organic chemistry) The acene consisting of seven fused benzene rings; any derivative of this compound.
n
(organic chemistry) A saturated eight-membered heterocycle containing one carbon atom and seven sulfur atoms
adj
(organic chemistry) Of or pertaining to a heterobicycle
n
(organic chemistry) One of the polybrominated biphenyls.
n
(inorganic chemistry) A trimer of phosphonitrilic chloride
n
(organic chemistry) Contraction of hexamethylenetetramine. [(organic chemistry) A crystalline compound C₆H₁₂N₄ used especially as an accelerator in vulcanizing rubber.]
n
(organic chemistry) Any compound that has six thiol groups
n
(organic chemistry) Any branched-chain form of an aliphatic aldehyde
n
(chemistry) The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds.
n
(organic chemistry) The saturated organometallic heterocycle having four carbon atoms and one molybdenum atom; any derivative (typically carbonyl) of this compound
n
(chemistry) Any of a series of nitro derivatives of aniline.
adj
(organic chemistry) Describing a straight chain isomer of an aliphatic hydrocarbon, or an aliphatic compound in which a substituent is in the 1- position of such a hydrocarbon.
n
(inorganic chemistry) A univalent radical derived from an oligosilane
n
(organic chemistry) A heterocyclic compound with oxygen in the ring.
n
(organic chemistry) A saturated five-membered heterocycle having three carbon atoms, one silicon and one oxygen atom; any of its derivatives
n
(organic chemistry) A six-membered unsaturated heterocycle containing three carbon atoms and one each of nitrogen, oxygen and sulfur
n
(organic chemistry) The unsaturated six-membered heterocycle having four carbon atoms, one oxygen atom, one sulfur atom and two double bonds
n
(organic chemistry) A saturated three-membered heterocycle containing one carbon, one sulfur and one oxygen atoms
n
(organic chemistry) A saturated heterocycle that has three carbon atoms, one sulfur and one oxygen atom
n
(organic chemistry) A saturated seven-membered heterocycle containing five carbon atoms, one nitrogen atom and one oxygen atom
n
(organic chemistry) A saturated seven-membered heterocycle having six carbon atoms and one oxygen atom
n
(organic chemistry) An unsaturated heterocycle that has three carbon atoms, one oxygen atom and a double bond
n
(organic chemistry) Any organic compound derived from another in which a phosphorus-sulfur bond in the parent has been replaced by a phosphorus-oxygen bond in the derivative.
n
(organic chemistry) The unsaturated nine-membered heterocycle having eight carbon atoms, one oxygen atom and four double bonds
n
(chemistry) Any tricyclic saturated hydrocarbon having two bridgehead carbon atoms joined by four bridges.
n
(chemistry) Any member of the alkane hydrocarbons.
n
(organic chemistry) A pentachloro derivative of anisole (in which the five hydrogens of the benzene ring are replaced by chlorine)
n
(inorganic chemistry) The unstable allotrope of oxygen (O₅) composed of a ring of five atoms
n
(organic chemistry) A colourless solid with chemical formula C₆H₅C(O)CH₂Br, a powerful lachrymator and a useful precursor to other organic compounds, prepared by bromination of acetophenone.
n
(organic chemistry) A heterocycle formally derived from phenanthridine by replacing the nitrogen atom with phosphorus
n
(organic chemistry) A saturated four-membered heterocycle containing three carbon atoms and one phosphorus atom
n
(organic chemistry) A saturated eight-membered heterocycle containing seven carbon atoms and one phosphorus atom
n
(organic chemistry) A saturated, five-membered heterocycle having four carbon atoms and one phosphorus atom; any derivative of this compound
n
(organic chemistry) The saturated bicyclic hydrocarbon 2,6,6-trimethyl-, (1a,2b,5a)-bicyclo[3.1.1]heptane made by the hydrogenation of pinene
n
(organic chemistry) Any cyclic organometallic compound of ruthenium
n
(organic chemistry) A five-membered unsaturated heterocycle having one nitrogen atom, one selenium atom and two double bonds
n
(organic chemistry) Any analog of a furan in which the oxygen atom is replaced by one of selenium
n
(organic chemistry) A five-membered heterocycle having four carbon atoms, one silicon atom and two double bonds; it is analogous to cyclopentadiene
n
(organic chemistry) An organometallic heterocyclic compound formally derived from benzene by substituting one carbon and hydrogen atom with antimony.
n
(organic chemistry) Any sulfonyl derivative of a triazole
n
(organic chemistry) An aromatic heterocyclic cation that has five carbon atoms, a tellurium atom and three delocalised double bonds
n
(organic chemistry) An oligomer of the heterocycle thiophene.
n
(organic chemistry) A saturated, five-membered heterocycle containing one atom of sulfur; it is added to natural gas to provide it with a detectable smell.
n
(organic chemistry) neopentane
n
(organic chemistry) A five-membered heterocycle having one carbon atom, four nitrogen atoms and two double bonds
n
(organic chemistry) Any heterohelicene containing at least one nitrogen and one sulfur heteroatoms.
n
(organic chemistry) Any heterohelicene containing at least one sulfur heteroatom
n
(obsolete, organic chemistry) diethyldisulfide (C₂H₅)₂S₂
n
(organic chemistry) The tricyclic heterocycle consisting of two benzene rings fused to that of a dithiin ring
n
(organic chemistry) Any of several isomeric five-membered heterocycles having one carbon atoms, three nitrogen atoms, one sulfur atom and two double bonds
n
(organic chemistry) A saturated six-membered heterocycle containing four carbon atoms, one nitrogen atom and one sulfur atom
n
(organic chemistry) A saturated, five-membered heterocycle containing three carbon atoms and a sulfur and nitrogen atom in the 1,3 positions; any derivative of this compound
n
(organic chemistry) Any of a class of compound containing a sulfur to nitrogen triple bond
n
(organic chemistry) Any of a class of saturated heterocycles having a four-membered ring, three carbon atoms and one sulfur atom
n
(organic chemistry) An unsaturated four-membered heterocycle containing three carbon atoms, one sulfur atom and one double bond
n
(organic chemistry) The saturated three-membered heterocycle containing two carbon atoms and one sulfur atom; ethylene sulfide
n
(organic chemistry) A saturated eight-membered heterocycle having seven carbon atoms and one sulfur atom
n
(organic chemistry) The bicyclic heterocycle formally derived from chromane by replacing the oxygen atom by one of sulfur
n
(organic chemistry) An unsaturated eight-membered heterocycle having seven carbon atoms, one sulfur atom and three double bonds
n
(organic chemistry) Any organic compound containing sulfur, especially a heterocycle containing a sulfur atom in the ring
n
(organic chemistry) The pseudohalogen N≡C-S-S-C≡N
n
(chemistry) The sulfur analogue of a ketal, with one of the oxygen atoms replaced by sulfur.
n
(organic chemistry) The five-membered saturated heterocycle having four carbon atoms and one sulfur atom; any derivative of this compound
n
(organic chemistry) A saturated heterocycle that has eight carbon atoms and a sulfur atom
n
(chemistry) A ketone-like compound in which the oxygen is replaced by sulfur, having the general formula R₂C=S
n
(organic chemistry) The unsaturated nine-membered heterocycle having eight carbon atoms, one sulfur atom and four double bonds.
n
(organic chemistry) A fluorescent crystalline substance, intermediate in composition between thionol and thionine.
n
(organic chemistry) Any of a class of aromatic heterocyclic compounds containing a ring of four carbon atoms and a sulfur atom; especially the simplest one, C₄H₄S.
n
(organic chemistry) An unsaturated (not wholly aromatic) heterocyclic cation that has five carbon atoms, a sulfur atom and three partially delocalised double bonds
n
(organic chemistry) A colourless oily liquid, C₄H₃S.CH₃, analogous to toluene, which it resembles; methyl thiophene.
n
Alternative form of thiotolene [(organic chemistry) A colourless oily liquid, C₄H₃S.CH₃, analogous to toluene, which it resembles; methyl thiophene.]
n
(chemistry) Abbreviation of tetrahydrothiophene. [(organic chemistry) A saturated, five-membered heterocycle containing one atom of sulfur; it is added to natural gas to provide it with a detectable smell.]
n
(chemistry) A hydrocarbon radical, C₆H₄.(CH₂)₂, regarded as characteristic of certain toluene derivatives.
n
Alternative form of trichloroethylene [(organic chemistry) the unsaturated chlorinated hydrocarbon C(Cl)₂=CHCl used as an industrial solvent]
n
(organic chemistry) cyanoform
n
(organic chemistry) Any saturated six-membered heterocycle having three carbon atoms and three oxygen atoms
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