Structural and spectral study of copper(II) complexes of pyridil bis{3-piperidyl-, bis[hexamethyleneiminyl-, bis[N(4)-diethyl-, and bis(N(4)-dipropylthiosemicarbazones}

Citation
E. Bermejo et al., Structural and spectral study of copper(II) complexes of pyridil bis{3-piperidyl-, bis[hexamethyleneiminyl-, bis[N(4)-diethyl-, and bis(N(4)-dipropylthiosemicarbazones}, Z ANORG A C, 627(5), 2001, pp. 827-835
Citations number
28
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
5
Year of publication
2001
Pages
827 - 835
Database
ISI
SICI code
0044-2313(200105)627:5<827:SASSOC>2.0.ZU;2-2
Abstract
dddddPyridil bis(N(4)-substituted thiosemicarbazones) have been prepared in which the substituents in place of the NH2 group in the thiosemicarbazone moieties are piperidinyl (H(2)Plpip), hexamethyleneiminyl (H(2)Plhexim), di ethylaminyl (H(2)Pl4DE), and dipropylaminyl (H(2)Pl4DP). IR, electronic, ma ss, and ESR spectra of their copper(II) complexes are reported. Crystal str ucture determinations of H(2)Pl4DE and three of the copper(II) complexes of formula [Cu(Plpip)], [Cu(Plhexim)] and [Cu(Pl4DE)](2) . 2[Cu(Pl4DE)], are included. H(2)Pl4DE lacks hydrogen bonding between the thiosemicarbazone mo ieties, but each moiety is in the Z configuration form with hydrogen bondin g from the thiosemicarbazone moieties to the pyridyl nitrogen atoms. The cr ystal used for the structure determination of [Cu(Plhexim)] was isolated fr om an electrochemical preparation. In all the new compounds the deprotonate d ligands are N,N,S,S-tetradentate. coordinating to the copper(II) centre t hrough their azomethine nitrogen atoms and their thiocarbonyl sulfur atoms.