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helicenes definition

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ortho-Fused polycyclic aromatic or heteroaromatic compounds in which all rings (minimum five) are angularly arranged so as to give helically shaped molecules, which are thus chiral. GNOC Recom. R-2.4.1.3.6. E.g. hexaheli

See also:

hidden return definition
hierarchical design methodology definition
Henderson-Hasselbach equation definition
heterolytic bond-dissociation energy definition
helium leak rate definition