Structural studies of a copper(II) complex with inequivalent 2-acetylpyridine 3-piperidylthiosemicarbazonato ligands and a nickel(II) complex with different modes of coordination by the two thiosemicarbazonato moieties of 1-phenylglyoxal bis{N(4)-diethylthiosemicarbazone}

Citation
E. Bermejo et al., Structural studies of a copper(II) complex with inequivalent 2-acetylpyridine 3-piperidylthiosemicarbazonato ligands and a nickel(II) complex with different modes of coordination by the two thiosemicarbazonato moieties of 1-phenylglyoxal bis{N(4)-diethylthiosemicarbazone}, Z ANORG A C, 627(8), 2001, pp. 1966-1971
Citations number
34
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
ISSN journal
0044-2313 → ACNP
Volume
627
Issue
8
Year of publication
2001
Pages
1966 - 1971
Database
ISI
SICI code
0044-2313(200108)627:8<1966:SSOACC>2.0.ZU;2-J
Abstract
The crystal structure of a copper(II) complex of 2-acetylpyridine 3-piperid ylthiosemicarbazone, [Cu(Acpip)(2)], indicates a tridentate, monoanionic li gand (i.e., pyridine nitrogen, imine nitrogen and thiolato sulfur atoms) an d a bidentate, monanionic ligand (i.e., imine nitrogen and thiolato sulfur atoms). The stereochemistry approaches square pyramidal with the bidentate Ligand occupying an apical (imine nitrogen atom) and basal (thiolato sulfur atom) position. The structure of a nickel(II) complex of 1-phenyl-glyoxal N(4)-diethylthiosemicarbazone, [Ni(P4DE)], has a 4-6-5 trichelate system ra ther than the 5-5-5 system common to bis(thiosemicarbazones). Coordination of the hydrazinic nitrogen atom of the "phenyl arm" along with the thiolato sulfur atom provides the 4-membered chelate ring.