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|Title:||One-step formation of cyclometallated Au(III) N,S-heterocyclic carbene: Crystallographic analysis||Authors:||Han, X.
|Issue Date:||2009||Citation:||Han, X., Koh, L.L., Weng, Z., Hor, T.S.A. (2009). One-step formation of cyclometallated Au(III) N,S-heterocyclic carbene: Crystallographic analysis. Dalton Transactions (35) : 7248-7252. ScholarBank@NUS Repository. https://doi.org/10.1039/b909661b||Abstract:||Gold(I) N,S-heterocyclic carbene AuBr(NSHC) (NSHC = N-allylbenzothiazolin- 2-ylidene) (1) with an allyl pendant is oxidised by iodine to give [AuI 2(NSHC)2]+[I3]- (2) and a cyclometallated byproduct AuBr2(η-C6H 4SCNCH2CHCH2Br-C,C′) (3). The latter can be prepared directly from bromination of 1. Similar reaction with the crotyl (but-2-en-1-yl) derivative AuBr(NSHC) (NSHC = N-crotylbenzothiazolin-2-ylidene) (4) gives an oxidative addition product AuBr3(C6H 4SCNCH2CHCHCH3) (5). X-Ray single-crystal crystallographic analysis of 3 reveals a 5-membered cyclometallated ring in a sq planar metal that gives two types of AuIII-C bonds. Similar structural analysis has also been carried out in 1, 2 and 5. © 2009 The Royal Society of Chemistry.||Source Title:||Dalton Transactions||URI:||http://scholarbank.nus.edu.sg/handle/10635/94426||ISSN:||14779226||DOI:||10.1039/b909661b|
|Appears in Collections:||Staff Publications|
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