Structural study of an N(4)-substituted thiosemicarbazone prepared from 1-phenyl-1,2-propanedione-2-oxime, and of a related nickel(II) complex

Citation
E. Bermejo et al., Structural study of an N(4)-substituted thiosemicarbazone prepared from 1-phenyl-1,2-propanedione-2-oxime, and of a related nickel(II) complex, Z NATURFO B, 56(4-5), 2001, pp. 369-374
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
0932-0776 → ACNP
Volume
56
Issue
4-5
Year of publication
2001
Pages
369 - 374
Database
ISI
SICI code
0932-0776(200104/05)56:4-5<369:SSOANT>2.0.ZU;2-D
Abstract
1-Phenyl-1,2-propanedione-2-oxime reacts with 3-piperidylthiosemicarbazide and 3-hexamethyleneiminylthiosemicarbazide to give the respective 1-phenyl- 1,2-propanedione-1-thiosemicarbazone-2-oximes, HPopip and HPohexim. The cry stal structure of HPopip shows the oxime and thiosemicarbazone moieties in a conformation single-trans respect to carbon-carbon. A six-coordinate nick el(II) complex, [Ni(Pohexim)(2)], has two monoanionic (through loss of a pr oton from the thiosemicarbazone function) oxime-thiosemicarbazone ligands c oordinated in a meridonal arrangement via the oxime nitrogen, the thiosemic arbazone imine nitrogen and the thiolato sulfur atoms. The bond distances t o nickel are shorter than found for other six-coordinate complexes with mon oanionic tridentate thiosemicarbazone ligands.