Versatile Methods for
Preparation of New Cyclometalated Gold(III) Complexes
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Abstract
Versatile methods for the high-yield syntheses of new
cyclometalated gold(III) complexes are described. Mono- or dialkylated
or arylated gold(III) complexes are selectively obtained from reaction
of Au(OCOCF<sub>3</sub>)<sub>2</sub>(tpy) (tpy = 2-(<i>p</i>-tolyl)pyridine) with either RMgX or RLi, respectively. Specifically,
AuMe<sub>2</sub>(tpy) and AuPh<sub>2</sub>(tpy) were prepared with
the respective lithium reagents, and AuBrMe(tpy), AuBrEt(tpy), and
AuBrPh(tpy) were prepared with Grignard reagents. The molecular structures
of compounds Au(OCOCF<sub>3</sub>)<sub>2</sub>(tpy) and AuMe<sub>2</sub>(tpy) were determined by single crystal X-ray diffraction