polynuclear compound
1polynuclear — poly·nu·cle·ar .päl i n(y)ü klē ər adj chemically polycyclic esp. with respect to the benzene ring * * * poly·nu·cle·ar (pol″e nooґkle ər) 1. of cells, pertaining to or having several nuclei; multinucleated. Cf. polymorphonuclear. 2.… …
2coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …
3IUPAC nomenclature of inorganic chemistry 2005 — The IUPAC Recommendations 2005, Nomenclature of Inorganic Chemistry replaces their previous recommendations Nomenclatureof Inorganic Chemistry, IUPAC Recommendations 1990 (Red Book I) , and where appropriate (sic) Nomenclature of Inorganic… …
4Cluster chemistry — In chemistry, a cluster is an ensemble of bound atoms intermediate in size between a molecule and a bulk solid. Clusters exist of diverse stoichiometries and nuclearities. For example, carbon and boron atoms form fullerene and borane clusters,… …
5Non-Kekulé molecule — Examples of non Kekulé (a) polyenes, (b) quinodimethanes, and (c) polynuclear aromatics A non Kekulé molecule is a conjugated hydrocarbon that cannot be assigned classical Kekulé structures. Since non Kekulé molecules have two or more formal… …
6Health effects of tobacco — Part of a series on Tobacco …
7Metal ions in aqueous solution — A metal ion in aqueous solution is a cation, dissolved in water, of chemical formula [M(H2O)n]z+. The solvation number, n, determined by a variety of experimental methods is 4 for Li+ and Be2+ and 6 for elements in rows 3 and 4 of the periodic… …
8Aromatic hydrocarbon — Arene redirects here. For other uses, see Arene (disambiguation). An aromatic hydrocarbon or arene[1] (or sometimes aryl hydrocarbon)[2] is a hydrocarbon with alternating double and single bonds between carbon atoms. The term aromatic was… …
9Osmium — This article is about the chemical element. For other uses, see Osmium (disambiguation). rhenium ← osmium → iridium Ru ↑ Os ↓ Hs …
10Aromaticity — is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. It can also be considered a manifestation of… …
