The reactivity of N-heterocyclic carbenes and their precursors with [Ru3(CO)12]

Bruce, Michael I., Cole, Marcus L., Fung, Ricky S.C., Forsyth, Craig M., Hilder, Matthias, Junk, Peter C. and Konstas, Kristina 2008, The reactivity of N-heterocyclic carbenes and their precursors with [Ru3(CO)12], Dalton transactions, vol. 2008, no. 31, pp. 4118-4128, doi: 10.1039/B805012K.

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Title The reactivity of N-heterocyclic carbenes and their precursors with [Ru3(CO)12]
Author(s) Bruce, Michael I.
Cole, Marcus L.
Fung, Ricky S.C.
Forsyth, Craig M.
Hilder, MatthiasORCID iD for Hilder, Matthias
Junk, Peter C.
Konstas, Kristina
Journal name Dalton transactions
Volume number 2008
Issue number 31
Start page 4118
End page 4128
Total pages 11
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2008
ISSN 1364-5447
Keyword(s) ambient temperature
n-heterocyclic carbenes
Summary The ambient temperature reaction of the N-heterocyclic carbenes (NHCs) 1,3-dimesitylimidazol-2-ylidene (IMes) and 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IDipp) with the triruthenium cluster [Ru3(CO)12], in a 3 : 1 stoichiometric ratio, results in homolytic cleavage of the cluster to quantitatively afford the complexes [Ru(CO)4(NHC)] (1; NHC = IMes, 2; NHC = IDipp). Reaction of the 2-thione or hydrochloride precursors to IMes, i.e. S[double bond, length as m-dash]IMes and IMes·HCl, with the same triruthenium cluster affords the complexes [Ru4(μ4-S)2(CO)9(IMes)2] (3) and [Ru4(μ4-S)(CO)10(IMes)2] (4) (3 : 1 and 2 : 1 reaction), and [{Ru(μ-Cl)(CO)2(IMes)}2] (7) (3 : 1 reaction) respectively. By contrast, the complex [Ru3(μ3-S)2(CO)7(IMeMe)2] (6), where IMeMe is 1,3,4,5-tetramethylimidazol-2-ylidene, is the sole product of the 2 : 1 stoichiometric reaction of S[double bond, length as m-dash]IMeMe with [Ru3(CO)12]. Compounds 1–4, 6 and 7 have been structurally characterised by single crystal X-ray diffraction.
Language eng
DOI 10.1039/B805012K
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, 2008, Royal Society of Chemistry
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