caa a22 4500 463189515 CHVBK 20180406164904.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10973-006-7730-z doi (NATIONALLICENCE)springer-10.1007/s10973-006-7730-z Thermal studies of bis salicylidene adipic dihydrazone derivatives and their complexes with divalent ions of Mn, Co, Ni, Cu and Zn [Elektronische Daten] [R. Issa, S. Amer, I. Mansour, A. Abdel-Monsef] The thermal stabilities of bis salicylidene adipic dihydrazone derivatives and their complexes with divalent Mn, Co, Ni, Cu and Zn were studied and discussed in terms of structure and type of metal ions. TG curves display mostly four steps of thermal decomposition. The first step is due to dehydration, then the elimination of the acetate anions followed by the decomposition of the ligand in two interacting steps. The activation energies E a were evaluated and discussed in accordance with the structure of the complexes which have been previously characterized by elemental analysis and IR spectra. It was found that the activation energies of the complexes based on bis salicylidene adipic dihydrazone were higher than those of the dihydroxy derivative. Springer Science+Business Media, LLC., 2007 activation energy nationallicence dihydrazones nationallicence metal complexes nationallicence thermal analysis nationallicence Issa R. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut Amer S. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut Mansour I. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut Abdel-Monsef A. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 261-267 1388-6150 90:1<261 2007 90 10973 https://doi.org/10.1007/s10973-006-7730-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7730-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Issa R. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut NATIONALLICENCE 700 1- Amer S. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut NATIONALLICENCE 700 1- Mansour I. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut NATIONALLICENCE 700 1- Abdel-Monsef A. Department of Chemistry, Faculty of Science, Tana University, Tanta, Egypt aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 261-267 1388-6150 90:1<261 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer