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http://nopr.niscpr.res.in/handle/123456789/16026| Title: | Complex heterobimetallic salts derived from 1-ethoxycarbonyl-1-cyanoethylene- 2,2-dithiolatodioxouranate(VI) ion: Preparation and properties |
| Authors: | Singh, Nanhai Gupta, Sunita |
| Issue Date: | Oct-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The reaction of K2[UO2 (ecda)2] (generated in situ) with cationic complexes [M(N-N)3X2 [M = Fe(II), Ru(II) , Co(II), Ni(II), Cu(II), Zn(II) or Cd(II); N-N = 2,2'-dipyridyl (dipy), 1,10-phenanthroline (phen) or ethylenediamine (en); ecda2- = 1-ethoxycarbonyl-1-cyanoethylene-2,2-dithiolate; X = Cl-, NO3- or 1/2SO42-] and n-Pr4NI in 1:1/1:2 molar ratio afforded the complex bimetallic salts [M(N-N)3][UO2(ecda)2] and the complex salt [n-Pr4N]2 [UO2 (ecda)2], that have been characterized on the basis of elemental analyses, molar conductance and magnetic susceptibility measurements, electrochemical and relevant spectroscopic studies. UV -visible absorption spectra in DMSO support the existence of ion-pair charge transfer (IPCT) absorption band which occurs due to charge transfer interaction between [Fe(phen)3/Ru(dipy) 3]2+ and [UO2(ecda)2]2- ion. Temperature dependent (303-373 K) pressed pellet conductivities of the complexes have been studied. All the bimetallic salts of this series comprise discrete tris-chelated octahedral cations [M(N-N)3]2+ and bis-chelated dioxouranium(-VI ) anion, [UO2(ecda) 2]2- with no sign of ligand exchange reaction in solution during the course of their formation . |
| Page(s): | 997-1009 |
| Appears in Collections: | IJC-A Vol.38A(10) [October 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 38A(10) 997-1009.pdf | 2.3 MB | Adobe PDF | View/Open |
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