Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/21195
Title: Synthesis and characterization of metal complexes of methylene bridged hexadentate tetraanionic ligands
Authors: Maurya, Mannar R
Agarwal, Neeraj
Khurana, Shilpa
Issue Date: Oct-2000
Publisher: NISCAIR-CSIR, India
Abstract: The flexibly-bridged tetraanionic hexadentate ligands (LH4), methylenbis(salicylaldehyde-o-hydroxybenzylamine) [CH2(H2sal-OHYBA)2] and methylenebis(salicylaldehyde –o-aminobenzylalcohol) [CH2(H2sal-OABA)2] react with acetates of copper(II), nickel(II), cobalt(II), dioxouranium(VI) to give the corresponding metal complexes of formula [Cu2L], [Ni2L.4H2O), [Co2L.4H2O] and [(UO2)2L.2CH3OH], respectively. Reaction of these ligands with [MO2(acac)2](M=Mo, W) in refluxing methanol affords [(MO2)2L.nCH3OH] (n=0 or 2). Thermogravimetric analyses confirm the coordination of H2O/CH3OH in complexes.1H NMR spectral data of molybdenum, tungsten and uranium complexes suggest coordination of the ligands through deprotonated phenolic/enolic oxygen and azomethine nitrogen atoms. Electronic spectral data suggest square planar structure for copper complexes while an octahedral structure for other complexes.
Page(s): 1093-1097
URI: http://hdl.handle.net/123456789/21195
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.39A(10) [October 2000]

Files in This Item:
File Description SizeFormat 
IJCA 39A(10) 1093-1097.pdf1.05 MBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.