A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes

Michael J. Cowley; Jason M. Lynam; John M. Slattery

doi:10.1039/b806358c

A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes

Michael J. Cowley, Jason M. Lynam, John M. Slattery

Chemistry

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

Abstract

The conversion of the alkyne complex RhCl(PPr3i)(2)(eta(2)-PhC CH) into its vinylidene isomer RhCl(PPr3i)(2)(=C=CPhH) has been monitored via NMR spectroscopy in a range of solvents. In THF and hexane solution the reaction was observed to proceed via the alkynyl hydride complex Rh(H)Cl(PPr3i)(2)(-C=CPh). The kinetic profile of the reaction demonstrates that this species is an intermediate in the formation of the vinylidene complex.

Original language	English
Pages (from-to)	4552-4554
Number of pages	3
Journal	Dalton Transactions
Volume	37
Issue number	34
DOIs	https://doi.org/10.1039/b806358c
Publication status	Published - 2008

Keywords

TRANSITION-METAL COMPLEXES
ORGANOMETALLIC CHEMISTRY
COORDINATION SPHERE
SOLID-STATE
TRANSFORMATION
REARRANGEMENT
RUTHENIUM
ACETYLENE
5-COORDINATE
RHCL(PIPR3)2

Access to Document

10.1039/b806358c

http://pubs.rsc.org/en/Content/ArticleLanding/2008/DT/b806358c

Cite this

@article{9dfa18c90f5d46c4985c6013acd892cc,

title = "A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes",

abstract = "The conversion of the alkyne complex RhCl(PPr3i)(2)(eta(2)-PhC CH) into its vinylidene isomer RhCl(PPr3i)(2)(=C=CPhH) has been monitored via NMR spectroscopy in a range of solvents. In THF and hexane solution the reaction was observed to proceed via the alkynyl hydride complex Rh(H)Cl(PPr3i)(2)(-C=CPh). The kinetic profile of the reaction demonstrates that this species is an intermediate in the formation of the vinylidene complex.",

keywords = "TRANSITION-METAL COMPLEXES, ORGANOMETALLIC CHEMISTRY, COORDINATION SPHERE, SOLID-STATE, TRANSFORMATION, REARRANGEMENT, RUTHENIUM, ACETYLENE, 5-COORDINATE, RHCL(PIPR3)2",

author = "Cowley, {Michael J.} and Lynam, {Jason M.} and Slattery, {John M.}",

year = "2008",

doi = "10.1039/b806358c",

language = "English",

volume = "37",

pages = "4552--4554",

journal = "Dalton Transactions",

issn = "1477-9234",

publisher = "The Royal Society of Chemistry",

number = "34",

}

TY - JOUR

T1 - A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes

AU - Cowley, Michael J.

AU - Lynam, Jason M.

AU - Slattery, John M.

PY - 2008

Y1 - 2008

N2 - The conversion of the alkyne complex RhCl(PPr3i)(2)(eta(2)-PhC CH) into its vinylidene isomer RhCl(PPr3i)(2)(=C=CPhH) has been monitored via NMR spectroscopy in a range of solvents. In THF and hexane solution the reaction was observed to proceed via the alkynyl hydride complex Rh(H)Cl(PPr3i)(2)(-C=CPh). The kinetic profile of the reaction demonstrates that this species is an intermediate in the formation of the vinylidene complex.

AB - The conversion of the alkyne complex RhCl(PPr3i)(2)(eta(2)-PhC CH) into its vinylidene isomer RhCl(PPr3i)(2)(=C=CPhH) has been monitored via NMR spectroscopy in a range of solvents. In THF and hexane solution the reaction was observed to proceed via the alkynyl hydride complex Rh(H)Cl(PPr3i)(2)(-C=CPh). The kinetic profile of the reaction demonstrates that this species is an intermediate in the formation of the vinylidene complex.

KW - TRANSITION-METAL COMPLEXES

KW - ORGANOMETALLIC CHEMISTRY

KW - COORDINATION SPHERE

KW - SOLID-STATE

KW - TRANSFORMATION

KW - REARRANGEMENT

KW - RUTHENIUM

KW - ACETYLENE

KW - 5-COORDINATE

KW - RHCL(PIPR3)2

UR - http://www.scopus.com/inward/record.url?scp=50049116166&partnerID=8YFLogxK

U2 - 10.1039/b806358c

DO - 10.1039/b806358c

M3 - Article

SN - 1477-9234

VL - 37

SP - 4552

EP - 4554

JO - Dalton Transactions

JF - Dalton Transactions

IS - 34

ER -

A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes

Abstract

Keywords

Access to Document

Other files and links

Cite this