Spectroscopic studies on isomerisation of coordinated polyfunctional dihydrazone in going from monometallic to bimetallic complexes: Zinc(II), copper(II) and dioxouranium(VI) complexes of bis(2-hydroxy-1-naphthaldehyde)oxaloyl-dihydrazone

Authors
Citation
Ra. Lal et A. Kumar, Spectroscopic studies on isomerisation of coordinated polyfunctional dihydrazone in going from monometallic to bimetallic complexes: Zinc(II), copper(II) and dioxouranium(VI) complexes of bis(2-hydroxy-1-naphthaldehyde)oxaloyl-dihydrazone, I J CHEM A, 38(8), 1999, pp. 839-842
Citations number
23
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
38
Issue
8
Year of publication
1999
Pages
839 - 842
Database
ISI
SICI code
0376-4710(199908)38:8<839:SSOIOC>2.0.ZU;2-R
Abstract
The monometallic complexes of the type [Zn-2(H4L)(2) (SO4)(2)] (1), [Zn-2(H 2L)(2)(H2O)(2)] (2), K-2[Zn-2(H2L)(2)F-2] (2a), and the heterobimetallic co mplexes of the type [(UO2)(2)Zn-2(L)(2)(H2O)(6)] (3), K-4[(UO2)(2)Zn-2(L)(2 )F-4(H2O)(2)] (3a), [Cu2Zn2(L)(2)(H2O)(4)] (4) and K-4[Cu2Zn2(L)(2)F-4(H2O) (2)] (4a) have been synthesized and characterized by analytical, molar cond uctance, and magnetic data and electronic, EPR, IR and H-1 NMR spectroscopi c studies. Monometallic complexes have been shown to contain the coordinate d dihydrazone in syn-cis-configuration while the heterobimetallic complexes contain the coordinated dihydrazone in the anti-cis-configuration.