NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(09-10) [September-October 2011] >

Title: Incorporation of lead(II) by copper(II)-salicylaldimine type ligand complexes: Cation– interactions in controlling the distortion of coordination geometry around lead(II)
Authors: Biswas, Saptarshi
Ghosh, Ashutosh
Keywords: Coordination chemistry
Heterometallic complexes
Di-Schiff base ligands
Schiff bases
Crystal structure
Cation– interactions
Issue Date: Sep-2011
Publisher: NISCAIR-CSIR, India
Abstract: Two tri-nuclear, hetero-metallic copper(II)-lead(II) complexes, [(CuL1)2Pb(NCS)2] (1) and [(CuL2)2Pb(NCS)2] (2) have been synthesized by reacting the “ligand-complex” [CuL1] and [CuL2] respectively with Pb(CH3COO)2·3H2O and ammonium thiocyanate (where H2L1 = N,N¢-bis(salicylidene)-1,3-propanediamine and H2L2 = N,N¢-bis(-methyl­-salicylidene)-1,3-propanediamine are the tetradentate di-Schiff base ligands) in EtOH-water medium. Both complexes have been characterized by X-ray single crystal structural analyses. In both structures, the central Pb(II) is six-coordinate, being bonded to four oxygen atoms from two terminal square planar CuL units and a couple of thiocyanate nitrogen atoms. The geometry around Pb(II) in both complexes is far from ideal octahedron and the distortion is more severe in (2). The coordination environment around all Cu(II) centres are square planar with different degrees of tetrahedral distortions. There are significant intra- and intermolecular cation- interactions between the phenyl rings of the Schiff base and Cu(II) that seem to control the distortion around Pb(II).
Page(s): 1356-1362
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(09-10) [September-October 2011]

Files in This Item:

File Description SizeFormat
IJCA 50A(09-10) 1356-1362.pdf224.75 kBAdobe PDFView/Open
 Current Page Visits: 115 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 165164 since 01-Sep-2015  Last updated on 27-Jun-2016Webmaster: