Chromium(III) complexes in dipolar aprotic solvents. VI. The anation of Hexa(dimethyl sulphoxide)chromium(III) [Cr(Me2SO)6]3+ in dimethyl sulphoxide
- 1 January 1975
- journal article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 28 (3) , 491-500
- https://doi.org/10.1071/ch9750491
Abstract
The anation reactions: �������������������� Cr(Me2SO)63+ + X- → CrX(Me2SO)52+ + Me2SO have been studied in detail for X- = N3- and SCN- as a function of concentration, temperature and ionic strength in both conditions of X- in excess over Cr(Me2SO)63+, and Cr(Me2SO)63+ in excess over X-, where greater certainty exists concerning the nature of the solution species. The reactions are interpreted as dissociative interchange reactions in which anation is a probable result of dissociation only when the anion occupies a position in the first solvation sphere of the complex. ��� Less complete results are presented for the less tractable anation of Cr(Me2SO)63+ by Cl- in Me2SO, and the analogous reaction of Cr(HCONMe2)63+ by Cl- in dimethylformamide.Keywords
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