Aquation of chloropentaamminecobalt(III) perchlorate in aqueous media
β Scribed by Barber, Elaine C.; Reynolds, Warren L.
- Book ID
- 125952863
- Publisher
- American Chemical Society
- Year
- 1973
- Tongue
- English
- Weight
- 415 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0020-1669
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π SIMILAR VOLUMES
## Abstract The firstβorder rate constants for aquation of Co(NH~3~)~5~(DMF)^3+^ were determined in aqueous perchlorate media. The rate constants were independent of hydrogen ion concentration and ionic strength, but decreased with increasing perchlorate ion concentration. Proton magnetic resonance
The equilibrium quotients for the formation of Co(NH3) SCl2+ from Co(NH3) 50Hz3+ and CI1were 3.74 f 0.25 M-' and 6.07 f 0.54 M-' at 45.OoC in 10: 1 mole ratio water: dimethyl sulfoxide and in 25 w/w yo aqueous ethanol, respectively, and those for the formation ofthe ion pair C O ( N H ~) ~O H ~~+ .
The aquation kinetics of [Co(NH 3 ) 5 Cl] 2Ο© in dicarboxylate media containing 10% (v/v) acetone is measured in the temperature range of 35 -60Β°C. A new empirical correlation between the rate coefficient, k obs , and the stoichiometric concentration of the dicarboxylate ligand (C L ) has been establ