Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

Adrian B. Chaplin; Amalia I. Poblador-Bahamonde; Hazel A. Sparkes; J. A K Howard; Stuart A. Macgregor; Andrew S. Weller

doi:10.1039/b816739g

Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

Adrian B. Chaplin, Amalia I. Poblador-Bahamonde, Hazel A. Sparkes, J. A K Howard, Stuart A. Macgregor, Andrew S. Weller

School of Engineering & Physical Sciences

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

42 Citations (Scopus)

Abstract

A well-characterised 14-electron rhodium phosphine complex, [Rh(P ⁱPr₃)₃][BAr^F₄], which contains a ß-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PⁱPr₃)₂(P ⁱPr₂(C₃H₅))][BAr^F₄]; calculations on a model system show that while C-H activation is equally accessible from the ß-CH agostic species or an alternative ?-CH agostic isomer, subsequent ß-H-transfer can only be achieved along pathways originating from the ß-CH agostic form. © The Royal Society of Chemistry.

Original language	English
Pages (from-to)	244-246
Number of pages	3
Journal	Chemical Communications
Issue number	2
DOIs	https://doi.org/10.1039/b816739g
Publication status	Published - 2009

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title = "Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate",

abstract = "A well-characterised 14-electron rhodium phosphine complex, [Rh(P iPr3)3][BArF4], which contains a {\ss}-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PiPr3)2(P iPr2(C3H5))][BArF4]; calculations on a model system show that while C-H activation is equally accessible from the {\ss}-CH agostic species or an alternative ?-CH agostic isomer, subsequent {\ss}-H-transfer can only be achieved along pathways originating from the {\ss}-CH agostic form. {\textcopyright} The Royal Society of Chemistry.",

author = "Chaplin, {Adrian B.} and Poblador-Bahamonde, {Amalia I.} and Sparkes, {Hazel A.} and Howard, {J. A K} and Macgregor, {Stuart A.} and Weller, {Andrew S.}",

year = "2009",

doi = "10.1039/b816739g",

language = "English",

pages = "244--246",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "2",

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T1 - Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

AU - Chaplin, Adrian B.

AU - Poblador-Bahamonde, Amalia I.

AU - Sparkes, Hazel A.

AU - Howard, J. A K

AU - Macgregor, Stuart A.

AU - Weller, Andrew S.

PY - 2009

Y1 - 2009

N2 - A well-characterised 14-electron rhodium phosphine complex, [Rh(P iPr3)3][BArF4], which contains a ß-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PiPr3)2(P iPr2(C3H5))][BArF4]; calculations on a model system show that while C-H activation is equally accessible from the ß-CH agostic species or an alternative ?-CH agostic isomer, subsequent ß-H-transfer can only be achieved along pathways originating from the ß-CH agostic form. © The Royal Society of Chemistry.

AB - A well-characterised 14-electron rhodium phosphine complex, [Rh(P iPr3)3][BArF4], which contains a ß-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PiPr3)2(P iPr2(C3H5))][BArF4]; calculations on a model system show that while C-H activation is equally accessible from the ß-CH agostic species or an alternative ?-CH agostic isomer, subsequent ß-H-transfer can only be achieved along pathways originating from the ß-CH agostic form. © The Royal Society of Chemistry.

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U2 - 10.1039/b816739g

DO - 10.1039/b816739g

M3 - Article

C2 - 19099083

SN - 1359-7345

SP - 244

EP - 246

JO - Chemical Communications

JF - Chemical Communications

IS - 2

ER -

Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

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