N-alkyl functionalised expanded ring N-heterocyclic carbene complexes of rhodium (I) and iridium (I): structural investigations and preliminary catalytic evaluation

JJ Dunsford, DS Tromp, KJ Cavell, CJ Elsevier…

Index: Dunsford, Jay J.; Tromp, Dorette S.; Cavell, Kingsley J.; Elsevier, Cornelis J.; Kariuki, Benson M. Dalton Transactions, 2013 , vol. 42, # 20 p. 7318 - 7329

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Citation Number: 15

Abstract

A series of new N-alkyl functionalised 6-and 7-membered expanded ring N-heterocyclic carbene (NHC) pro-ligands 3–6 and their corresponding complexes of rhodium (I) and iridium (I),[M (NHC)(COD) Cl] 7–14 and [M (NHC)(CO) 2Cl] 15–22 are described. The complexes have been characterised by 1H and 13C {1H} NMR, mass spectrometry, IR and X-ray diffraction. It is noted from X-ray diffraction studies that the N-alkyl substituents are ...