caa a22 4500 463191757 CHVBK 20180406164911.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10973-006-7522-5 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7522-5 Thermoanalytical investigation of 1,2-diimidazoloethane complexes of copper, mercury and cadmium by TG-DTG-DTA techniques in static air atmosphere [Elektronische Daten] [M. Arshad, A. Qureshi, S. Rehman, K. Masud] The iodide complexes of transition metals with 1,2-diimidazoloethane (DIE) of the general formula MLI2, (M=Cu(II), Hg(II), Cd(II); L=1,2-diimidazoloethane) were prepared and studied by means of thermogravimetry (TG/DTG) and differential thermal analysis (DTA) techniques. Their compositions were investigated by elemental analysis in order to ensure their purity and structural elucidations were based on conductivity measurements, room temperature magnetic measurements, proton NMR, XRD and IR spectra. Thermal decomposition of these distorted tetrahedral complexes and the ligand took place in two distinct steps upon heating up to 800°C, with the loss of inorganic and organic fragments. The thermal degradation of all the complexes (except for cadmium complex) in static air atmosphere started at temperatures lower than those observed for the free ligand pyrolysis. The composition of intermediates formed during degradation was confirmed by microanalysis and IR spectroscopy. The residues after heating above 740°C corresponded to metal oxide except for Hg(II) complex, which behaved differently. It was found on the basis of thermal analysis that thermal stability of the complexes increased in the following sequence: Hg(II)<Cu(II)<Cd(II). Springer Science+Business Media LLC, 2007 1,2-diimidazoloethane (DIE) nationallicence M(DIE)I2 complexes nationallicence tetrahedral complexes nationallicence thermoanalytical study nationallicence Arshad M. APD. PINSTECH, P.O. Nilore, Islamabad, Pakistan aut Qureshi A. NMD, PINSTECH, P.O. Nilore, Islamabad, Pakistan aut Rehman S. Department of Chemistry, University of Peshawar, Peshawar, N.W.F.P., Pakistan aut Masud K. CPC Project, D.G. Khan, Punjab, Pakistan aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/2(2007-08-01), 561-566 1388-6150 89:2<561 2007 89 10973 https://doi.org/10.1007/s10973-006-7522-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7522-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Arshad M. APD. PINSTECH, P.O. Nilore, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Qureshi A. NMD, PINSTECH, P.O. Nilore, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Rehman S. Department of Chemistry, University of Peshawar, Peshawar, N.W.F.P., Pakistan aut NATIONALLICENCE 700 1- Masud K. CPC Project, D.G. Khan, Punjab, Pakistan aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/2(2007-08-01), 561-566 1388-6150 89:2<561 2007 89 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer