Title
Synthesis, spectroscopy and thermal-analysis of nickel(II), palladium(II) and copper(II) complexes with N,N'-bis(2-hydroxyethyl)-oxamide Synthesis, spectroscopy and thermal-analysis of nickel(II), palladium(II) and copper(II) complexes with N,N'-bis(2-hydroxyethyl)-oxamide
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Weinheim ,
Subject
Chemistry
Source (journal)
Transition metal chemistry. - Weinheim
Volume/pages
19(1994) :5 , p. 542-547
ISSN
0340-4285
ISI
A1994PQ09300018
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The new complexes K-2[Ni(H(2)heo)(2)].3H(2)O, K-2[Pd- (H(2)heo)(2)], K-2[Cu(heo)].3H(2)O and [Cu-2(heo).2H(2)O] {heo = [(CONCH2CH2O)(2)](4-)} were prepared and characterized by chemical analyses, conductivity measurements, thermogravimetry, magnetic susceptibility and i.r. and u.v. spectroscopy. Monomeric square planar structures with MN(4) coordination spheres are found for the nickel and palladium complex anions. For copper, two different complexes were identified. In slightly alkaline media, a green insoluble nonelectrolyte [Cu-2(heo).2H(2)O] was prepared; the two copper(II) centres are bridged by the tetra-deprotonated ligand in a trans-planar configuration with the H2O molecules strongly coordinated to the copper(II). The copper(II) monomer has been prepared in strong alkaline media, this anion also contains the tetra-deprotonated ligand in a planar trans form.
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