| Autor: |
Bulimestru, I. G., Petrenko, P. A., Gulea, A. P., Gdaniec, M., Simonov, Yu. A. |
| Zdroj: |
Russian Journal of Coordination Chemistry; June 2005, Vol. 31 Issue: 6 p420-428, 9p |
| Abstrakt: |
Abstract A new heterometallic Bi(III) complex with diethylenetriaminepentaacetic acid anion (Dtpa)5- of the composition [Co(Tsc)3]2[Bi(Dtpa)]2SO4 · 6H2O (I) (Tsc is thiosemicarbazide) is synthesized and its crystal structure is determined. The complex consists of the [Co(Tsc)3]3+ cations, [Bi(Dtpa)]2- and SO42- anions, and crystallization water molecules. The SO42- ion and two water molecules are randomly disordered over two positions. In the complex cation [Co(Tsc)3]3+, the metal polyhedron has fac-form. The carboxyl groups of octadentate (Dtpa)5- ligand in the [Bi(Dtpa)]2- anion are fully deprotonated. The coordination polyhedron of the Bi atom is a distorted bicapped trigonal prism. Thermogravimetric analysis of complex I indicates that its decomposition occurs through several stages, i.e., dehydration, burning of organic ligands, and the formation of inorganic residue. |
| Databáze: |
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