NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.46A [2007] >
IJC-A Vol.46A(08) [August 2007] >


Title: Magnetic and spectral properties of adducts of copper(II) chlorobenzoates with substituted piperazines
Authors: Manhas, B S
Kalia, S B
Sardana, A K
Lumba, K
Issue Date: Aug-2007
Publisher: CSIR
Abstract: Adducts of Cu(OOCR)2 (where R = 2-, 3- or 4-ClC₆H₄) with saturated substituted piperazines of the type Cu(OOCR) ₂(L-L)ո [where n = 0.5 or 1 and L-L = 1-methylpiperazine (1-MePipz), 1,4-dimethylpiperazine (1,4-Me₂Pipz), 2,6-dimethylpiperazine (2,6-Me2Pipz) and 1-phenylpiperazine (1-PhPipz)] have been prepared and characterized by elemental analysis, infrared, electronic reflectance, electron paramagnetic resonance spectral and magnetic moment studies. Three complexes which have room temperature magnetic moment values lower than the spin only values and have room temperature electron paramagnetic resonance spectra corresponding to S = 1, rather than S = 1/2, have been further subjected to magnetic susceptibility and electron paramagnetic resonance spectral measurements at different temperatures to evaluate spin-exchange parameter (-2J = 282-313 cm⁻¹). Based upon the above studies, axially symmetric binuclear structure for complexes of the type Cu(OOCR)2(L-L), polymeric structure containing binuclear units for the Cu(OOCR)₂(L-L)₀․₅ complexes and axially symmetric polymeric square pyramidal or trans-pseudo octahedral structure for complexes of the type Cu(OOCR)₂(2,6-Me₂Pipz) (R = 2-, 3- and 4-ClC6H4), have been proposed.
Page(s): 1226-1232
ISSN: 0376-4710
Source:IJC-A Vol.46A(08) [August 2007]

Files in This Item:

File Description SizeFormat
IJCA 46A(8) 1226-1232.pdf120.77 kBAdobe PDFView/Open
 Current Page Visits: 753 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  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 © 2012 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: 606962 since 06-Feb-2009  Last updated on 31-Oct-2014Webmaster: nopr@niscair.res.in