heterocyclic compound

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Noun1.heterocyclic compound - a compound containing a heterocyclic ring
chelate, chelate compound - a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
References in periodicals archive ?
Over the next few hundred million years, argues Cuzzi, the energy transfer will cause particles in the outer parts of the ring to fall toward the planet while nudging the moon away, so that the ring structure will collapse.
Its countrywide optical network is designed as a ring structure with key network points linked in at least two ways to guarantee service continuity.
Aluto Volcano is an active, peralkaline rhyolitic complex of Quaternary age, which is characterized by numerous rhyolitic domes forming a 6x9 km large caldera ring structure.
Such ring structure is rare in a late-type spiral galaxy, that is, one that exhibits a small central bulge and loosely structured arms with prominent condensations.
A "fused" ring structure is defined in the present context as any ring structure containing at least one aromatic ring that shares at least one edge with another ring and with all the other rings with which it shares an edge.
1] is caused by two adjacent hydrogens on the ring structure (20).
1 Benzene ring: A regular hexagonal ring structure consisting of six carbon atoms, found in such aromatic compounds as benzene.
They're further broken down into sub-categories based on whether they're (a) brighter toward the center, (b) uniform in brightness, or (c) have traces of ring structure.
Recently it was recognized that porphyry mineralized alteration zones occupy the ring structure of such calderas.
To synthesize rapamycin -- a 31-carbon ring structure -- the scientists first constructed an open chain of 29 carbons.
The bases fall into two complementary chemical categories: purines, which have two fused rings of atoms; and pyrimidines, which have a single ring structure.
In preliminary experiments, researchers already have made catalytic antibodies that repair DNA damage caused by exposure to solar ultraviolet radiation, break the peptide bond between two specific amino acids or transform one end of a linear molecule into a ring structure.