Thermal Behaviour of the N-donor Adducts of Metal Saccharinates. II. 1,10-phenanthroline saccharinato complexes of Co(II), Ni(II), Cu(II), Zn(II) and Pb(II) |
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Authors: | P Naumov O Grup?e V Jordanovska B Boyanov G Jovanovski |
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Institution: | (1) Institute of Chemistry, Faculty of Science, 'Sv. Kiril i Metodij' University, P.O. Box 162, MK-91001 Skopje, Macedonia;(2) Faculty of Chemistry, Plovdiv University, Paisii Hilendarski, BG-4025 Plovdiv, Bulgaria |
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Abstract: | Adducts of Co(II), Ni(II), Cu(II), Zn(II) and Pb(II) saccharinates with 1,10-phenathroline were synthesized and their thermoanalytical
(TG, DTG and DTA) curves in the 20–1000°C temperature interval and static air atmosphere were recorded. The complexes are
best represented as M(C12H8N2)x(C7H4NO3S)2⋅yH2O (x=2, 2, 2, 2 and 1; y=1, 1, 2, 1 and 2 for M=Co, Ni, Cu, Zn and Pb, respectively). The decomposition of the compounds regularly started with dehydration, followed by
loss of the phenanthroline ligand(s). The structures of the Cu and Pb complexes are notably different from other compounds.
FTIR spectra of the title compounds in the region of the OH, CO and SO2 stretching vibrations were also studied. The pronounced similarity of the spectra of Co, Ni and Zn adducts indicates possible
isomorphism among them.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | N-donor adducts 1 10-phenanthroline saccharinates thermal decomposition |
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