H. Murray, J. Fackler, A. M. Mazany
Apr 15, 1986
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0
Influential Citations
13
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Journal
Inorganica Chimica Acta
Abstract
The reaction of bromoacetonitrile and [Au(CH 2 ) 2 PPh 2 ] 2 , 1 , in benzene gives [Au(CH 2 ) 2 PPh 2 ] 2 (CH 2 CN)Br, 2 , in near quantitative yield. Bromoacetophenone reacts with 1 in dichloromethane to give [Au(CH 2 ) 2 PPh 2 ] 2 (CH 2 C(O)Ph)Br, 3 , in high yield. These gold(II) functionalized alkyl halide adducts are very stable. Their structural, physical and chemical properties are compared with [Au(CH 2 ) 2 PPh 2 ] 2 (Me)Br, 4 . For 2, C 30 H 30 Au 2 BrP 2 N, triclinic, P ; a = 11.030(3), b = 16.016(4), c = 10.3639(2) A, α = 92.310(20), β = 107.950(18), γ = 106.730(19)°, V = 1651.4(7)A 3 with Z = 2. The structure refined to R = 0.040, R w = 0.040 for 3195 reflections with I ⩾ 3.0σ( I ). For 3, C 36 H 35 Au 2 BrP 2 O, monoclinic, Pc ; a = 13.684(4), b = 9.667(15), c = 25.765(3) A, β = 100.95(16)°; V = 3346(1) A 3 with Z = 4. The structure refined to R = 0.049, R w = 0.045 for 2852 reflections with I ⩾ 3.0σ( I ). Both compounds have AuAu singte bonds. In solution each shows a much lower tendency to reductively eliminate alkyl halide than the non-functionalized alkyl adduct.