Catalysis by phosphine- or phosphine-substituted rhodium cluster carbonyls. II. A 13C and 31P NMR study of Rh6(CO)12(P(OPh)3)4

W. Abboud; Y. Ben Taarit; R. Mutin; J. M. Basset

doi:10.1016/S0022-328X(00)83113-7

Catalysis by phosphine- or phosphine-substituted rhodium cluster carbonyls. II. A ¹³C and ³¹P NMR study of Rh₆(CO)₁₂(P(OPh)₃)₄

W. Abboud^*, Y. Ben Taarit, R. Mutin, J. M. Basset

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Variable temperature ¹³C and ³¹P NMR studies on Rh₆(CO)₁₂[P(OPh)₃]₄ show that the solid state structure is maintained in solution from -80 to 60°C. Above 60°C there is a fluxional motion of some of the carbonyls between triply-bridging and edge-bridging positions. The onset of this fluxionality parallels the appearance of catalytic activity in hydrogenation of cyclohexene.

Original language	English (US)
Pages (from-to)	C15-C19
Journal	Journal of Organometallic Chemistry
Volume	220
Issue number	1
DOIs	https://doi.org/10.1016/S0022-328X(00)83113-7
State	Published - Nov 3 1981
Externally published	Yes

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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abstract = "Variable temperature 13C and 31P NMR studies on Rh6(CO)12[P(OPh)3]4 show that the solid state structure is maintained in solution from -80 to 60°C. Above 60°C there is a fluxional motion of some of the carbonyls between triply-bridging and edge-bridging positions. The onset of this fluxionality parallels the appearance of catalytic activity in hydrogenation of cyclohexene.",

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AU - Taarit, Y. Ben

AU - Mutin, R.

AU - Basset, J. M.

PY - 1981/11/3

Y1 - 1981/11/3

N2 - Variable temperature 13C and 31P NMR studies on Rh6(CO)12[P(OPh)3]4 show that the solid state structure is maintained in solution from -80 to 60°C. Above 60°C there is a fluxional motion of some of the carbonyls between triply-bridging and edge-bridging positions. The onset of this fluxionality parallels the appearance of catalytic activity in hydrogenation of cyclohexene.

AB - Variable temperature 13C and 31P NMR studies on Rh6(CO)12[P(OPh)3]4 show that the solid state structure is maintained in solution from -80 to 60°C. Above 60°C there is a fluxional motion of some of the carbonyls between triply-bridging and edge-bridging positions. The onset of this fluxionality parallels the appearance of catalytic activity in hydrogenation of cyclohexene.

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Catalysis by phosphine- or phosphine-substituted rhodium cluster carbonyls. II. A ¹³C and ³¹P NMR study of Rh₆(CO)₁₂(P(OPh)₃)₄

Abstract

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