Synthesis and X-ray crystal structure of trimesitylrhodium(III)
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 18,p. 1242-1243
- https://doi.org/10.1039/c39900001242
Abstract
The first neutral homoleptic aryl of rhodium(III), Rh(2,4,6-Me3C6H2)3, has been made by interaction of RhCl3(C4H8S)3 and mesitylmagnesium bromide; the X-ray crystal structure suggests that there is ‘agostic’ interaction between Rh and an ortho-CH3 group in a distorted fac-octahedral geometry, but solution spectroscopic data show no evidence for agostic hydrogen bonding; 1H NMR spectra over a temperature range indicate synchronized rotation of the mesityl group about the Rh–C bond for which ΔG‡ is ca. 63 kJ mol–1.Keywords
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