Molecular and crystal structure of tris(acetonitrile)nitrosylbis(triphenylphosphine)rhodium(III) dication as its hexafluorophosphate salt
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 22,p. 2237-2242
- https://doi.org/10.1039/dt9770002237
Abstract
Crystals of [Rh(NCMe)3(NO)(PPh3)2][PF6]2 are monoclinic, space group P21/n, with a= 14.053(8), b= 27.512(15), c= 11.914(8)Å, β= 97.29(5)°, and Z= 4. The structure has been elucidated by the analysis of 8 502 observed intensities recorded at ca. 215 K on a four-circle diffractometer, and refined by least squares to R 0.075. In the cation the metal is octahedrally bound to trans-phosphorus atoms (mean Rh–P 2.405 Å) and three acetonitrile ligands [Rh–N 2.030(7). 2.104(7), and 2.308(8)Å] the last lying trans to the nitrosyl function [Rh–NO 2.026(8)Å] which acts as the one-electron donor [NO]–[Rh–N–O 118.4(6)°]. The two hexafluorophosphate counter ions exhibit differing thermal activity which is correlated to their crystal environments.Keywords
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