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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Steric course and kinetics of aquation of some haloaquotetraamminechromium(III) complexes

WW Fee, WG Jackson and PD Vowles

Australian Journal of Chemistry 25(3) 459 - 467
Published: 1972

Abstract

The aquation stoioheiometry of cis. and trans-Cr(NH3),(OH2)Br2+ and cis- and trans-Cr(NH3)4(OH2)I2+ ions when either spontaneous, Hg2+ promoted, or carried out via the hydroxo forms generated in basic solution has been examined. The two latter treatments have been conducted on cis-Cr(NH3)4(OH2)C12+ ion. Spectrophotometric methods show all lose halide with retention of configuration. The rates of aquation in acid media of the Cr(NH3)4(OH2)Br2+ and Cr(NH3),(OH2)I2+ ions have been investigated and comparisons are made with related tetraammine and bis(ethylenediamine) oomplexes. Evidence has accumulated to show almost complete stereoretentivity in the aquation reactions of chromium(111) amine complexes.

https://doi.org/10.1071/CH9720459

© CSIRO 1972

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