Transition metal complexes with pyrazole based ligands |
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| Authors: | Katalin Mészáros Szécsényi V M Leovac R Petković Ž K Jaćimović G Pokol |
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| Institution: | (1) Faculty of Sciences, Department of Chemistry, University of Novi Sad, 21000 Novi Sad, Trg D. Obradovića 3, Serbia;(2) Faculty of Metallurgy and Technology, Podgorica, Montenegro;(3) Institute for General and Analytical Chemistry, Budapest University of Technology and Economics, 1521 Budapest, Szt. Gellért tér 4, Hungary |
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| Abstract: | The deaquation of two isostructural compounds of general formula M(HL)2(H2O)2](NO3)2 (M=Co, Ni, HL=3,5-dimethyl-1H-pyrazole-1-carboxamidine) is discussed in the view of their crystal and molecular structure. The compounds contain the same
number and type of hydrogen bonds of the adjacent nitrate ions, only in the opposite orientation. On the basis of their deaquation
pattern such a small difference may be detected, i.e., methods of thermal analysis are sensitive enough to show very small
structural differences. |
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| Keywords: | Co(II) and Ni(II) complexes crystal structure deaquation 3 5-dimethyl-1H-pyrazole-1-carboxamidine |
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