Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)

C E Ellul; O Saker; M F Mahon; D C Apperley; M K Whittlesey

doi:10.1021/om700915t

Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)

C E Ellul, O Saker, M F Mahon, D C Apperley, M K Whittlesey

Department of Chemistry

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

50 Citations (SciVal)

Abstract

The N-heterocyclic carbenes (NHCs) 1,3-dialkyl-4,5-dimethytimidazol-2-ylidene (alkyl = ethyl, IEt2Me2; isopropyl, (IPr2Me2)-Pr-i) and 1,3-di-isopropylimidazol-2-ylidene ((IPr2)-Pr-i) cleave Ru-3(CO)(12) at room temperature to give the mononuclear complexes Ru(NHC)(2)(CO)(3) (NHC = IEt2Me2 1; (IPr2Me2)-Pr-i 2; (IPr2)-Pr-i, 3). X-ray crystallography reveals that I contains trans-NHC ligands whereas 2 and 3 have an unexpected cis arrangement of carbenes. Exposure of 1-3 to air in the solid state or upon reaction with O-2 in solution yields the carbonato complexes Ru(NHC)(2)(CO)(2)(CO3) (NHC = IEt2Me2 4, (IPrMe2)-Pr-i 5, (IPr2)-Pr-i 6).

Original language	English
Pages (from-to)	100-108
Number of pages	9
Journal	Organometallics
Volume	27
Issue number	1
DOIs	https://doi.org/10.1021/om700915t
Publication status	Published - 2008

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ID number: ISI:000252156000016

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10.1021/om700915t

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@article{d671fe2bae984ac6a88446bae10ce7d8,

title = "Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)",

abstract = "The N-heterocyclic carbenes (NHCs) 1,3-dialkyl-4,5-dimethytimidazol-2-ylidene (alkyl = ethyl, IEt2Me2; isopropyl, (IPr2Me2)-Pr-i) and 1,3-di-isopropylimidazol-2-ylidene ((IPr2)-Pr-i) cleave Ru-3(CO)(12) at room temperature to give the mononuclear complexes Ru(NHC)(2)(CO)(3) (NHC = IEt2Me2 1; (IPr2Me2)-Pr-i 2; (IPr2)-Pr-i, 3). X-ray crystallography reveals that I contains trans-NHC ligands whereas 2 and 3 have an unexpected cis arrangement of carbenes. Exposure of 1-3 to air in the solid state or upon reaction with O-2 in solution yields the carbonato complexes Ru(NHC)(2)(CO)(2)(CO3) (NHC = IEt2Me2 4, (IPrMe2)-Pr-i 5, (IPr2)-Pr-i 6).",

author = "Ellul, {C E} and O Saker and Mahon, {M F} and Apperley, {D C} and Whittlesey, {M K}",

note = "ID number: ISI:000252156000016",

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doi = "10.1021/om700915t",

language = "English",

volume = "27",

pages = "100--108",

journal = "Organometallics",

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publisher = "American Chemical Society",

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T1 - Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)

AU - Ellul, C E

AU - Saker, O

AU - Mahon, M F

AU - Apperley, D C

AU - Whittlesey, M K

N1 - ID number: ISI:000252156000016

PY - 2008

Y1 - 2008

N2 - The N-heterocyclic carbenes (NHCs) 1,3-dialkyl-4,5-dimethytimidazol-2-ylidene (alkyl = ethyl, IEt2Me2; isopropyl, (IPr2Me2)-Pr-i) and 1,3-di-isopropylimidazol-2-ylidene ((IPr2)-Pr-i) cleave Ru-3(CO)(12) at room temperature to give the mononuclear complexes Ru(NHC)(2)(CO)(3) (NHC = IEt2Me2 1; (IPr2Me2)-Pr-i 2; (IPr2)-Pr-i, 3). X-ray crystallography reveals that I contains trans-NHC ligands whereas 2 and 3 have an unexpected cis arrangement of carbenes. Exposure of 1-3 to air in the solid state or upon reaction with O-2 in solution yields the carbonato complexes Ru(NHC)(2)(CO)(2)(CO3) (NHC = IEt2Me2 4, (IPrMe2)-Pr-i 5, (IPr2)-Pr-i 6).

AB - The N-heterocyclic carbenes (NHCs) 1,3-dialkyl-4,5-dimethytimidazol-2-ylidene (alkyl = ethyl, IEt2Me2; isopropyl, (IPr2Me2)-Pr-i) and 1,3-di-isopropylimidazol-2-ylidene ((IPr2)-Pr-i) cleave Ru-3(CO)(12) at room temperature to give the mononuclear complexes Ru(NHC)(2)(CO)(3) (NHC = IEt2Me2 1; (IPr2Me2)-Pr-i 2; (IPr2)-Pr-i, 3). X-ray crystallography reveals that I contains trans-NHC ligands whereas 2 and 3 have an unexpected cis arrangement of carbenes. Exposure of 1-3 to air in the solid state or upon reaction with O-2 in solution yields the carbonato complexes Ru(NHC)(2)(CO)(2)(CO3) (NHC = IEt2Me2 4, (IPrMe2)-Pr-i 5, (IPr2)-Pr-i 6).

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U2 - 10.1021/om700915t

DO - 10.1021/om700915t

M3 - Article

SN - 0276-7333

VL - 27

SP - 100

EP - 108

JO - Organometallics

JF - Organometallics

IS - 1

ER -

Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)

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500 MHZ NMR SPECTROMETER TO SUPPORT ORGANIC, BIO-ORGANIC AND INORGANIC CHEMISTRY

APPLICATIONS OF N-HETEROCYCLIC CARBENE STABILISED RUTHENIUM HETEROATOM HYDRIDE COMPLEXES IN CATALYTIC & STOICHIOMETRIC T

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Cleavage of Ru-3(CO)(12) by N-heterocyclic carbenes: Isolation of cisand trans-Ru(NHC)(2)(CO)(3) and reaction with O-2 to form Ru(NHC)(2)(CO)(2)(CO3)

Abstract

Bibliographical note

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500 MHZ NMR SPECTROMETER TO SUPPORT ORGANIC, BIO-ORGANIC AND INORGANIC CHEMISTRY

APPLICATIONS OF N-HETEROCYCLIC CARBENE STABILISED RUTHENIUM HETEROATOM HYDRIDE COMPLEXES IN CATALYTIC & STOICHIOMETRIC T

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