Ionic association equilibria in the dimethyl sulphoxide solutions of Mn(CF3COO)2, Co(CF3COO)2 and Ni(CF3COO)2 |
| |
| Authors: | D. Puchalska E. Kamieńska-Piotrowicz W. Libuś |
| |
| Affiliation: | Department of Physical Chemistry of the Institute of Chemical Engineering, Technical University of Gdańsky, 80-952 Gdańsky, Poland |
| |
| Abstract: | The molar conductivity curves have been determined for Mn(CFR3COO)2, Co(CF3COO)2 and Ni(CF3COO)2 in dimethyl sulphoxide at 25°C. The first step association constants are derived. Auxiliary measurements of the visible absorption spectra and the nmr chemical shifts of the solvent protons indicate lack of coordination1 of the anion in the solutions of Ni(CF3COO)2. On the other hand, bidentate coordination of the anion, taking place to a small extent in addition to the outer-sphere association, is inferred for Co(CF3COO)2. On the assumption that the outer-sphere association constants are approximately the same for the three metal trifluoroacetates, the highest extent of the inner-sphere association is inferred for Mn(CF3COO)2. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
