Dipartimento di Scienze Chimiche, Università di Camerino, via S. Agostino 1, I-62032 Camerino, Italy.
Inorg Chem. 2010 Jan 18;49(2):513-8. doi: 10.1021/ic901562d.
The reaction of tris(1-benzylimidazole-2-yl)phosphine, (Bzim)(3)P, 1, with Ph(3)AsAuCl in 1:1 stoichiometric ratio produced (Bzim)(3)PAuCl, 2. The reaction of (Bzim)(3)PAuCl with NaAuCl(4) in 1:1 stoichiometry in dichloromethane gives an orange-yellow crystalline tetranuclear gold(I) cluster [{mu-N,N'-(Bzim)(3)PAuCl}(2)Au(2)][AuCl(2)][AuCl(4)], 3. Complex 4, [{mu-N,N'-(Bzim)(3)PAuCl}(2)Au(2)]AuCl(2) is formed when the reaction stoichiometry of (Bzim)(3)PAuCl and AuCl(4)(-) is 2:1. The crystal structure of 3 shows the formation of a 12-membered macrocycle with Au...Au distances of approximately 3.0 A. The structures of (Bzim)(3)PAuCl and 3 show Au...H-C interactions ranging from 2.57 to 2.95 A. Complex 2 crystallizes in the monoclinic space group P2(1)/n (Z = 4), a = 9.1927(5), b = 13.528(2), c = 22.995(2) A, and beta = 94.537(5)(o). Complex 3 crystallizes in the monoclinic space group P2(1)/c (Z = 4), a = 13.785(4), b = 21.426(6), c = 25.203(8) A, and beta = 96.51(6)degrees.
三(1-苯并咪唑-2-基)膦（Bzim）（3）P 与 Ph（3）AsAuCl 以 1:1 的化学计量比反应生成（Bzim）（3）PAuCl，2。（Bzim）（3）PAuCl 与 NaAuCl（4）在 1:1 的化学计量比在二氯甲烷中反应得到橙色结晶的四核金（I）簇 [{mu-N，N'-(Bzim）（3）PAuCl}(2)Au(2)][AuCl(2)][AuCl(4)]，3。当（Bzim）（3）PAuCl 和 AuCl（4）（-）的反应化学计量比为 2:1 时，形成配合物 4，[{mu-N，N'-(Bzim）（3）PAuCl}(2)Au(2)]AuCl(2)。3 的晶体结构显示形成了一个具有大约 3.0 A 的 Au...Au 距离的 12 元大环。（Bzim）（3）PAuCl 和 3 的结构显示 Au...H-C 相互作用范围为 2.57 至 2.95 A。配合物 2 结晶在单斜空间群 P2(1)/n（Z = 4）中，a = 9.1927(5)，b = 13.528(2)，c = 22.995(2) A，beta = 94.537(5)(o)。配合物 3 结晶在单斜空间群 P2(1)/c（Z = 4）中，a = 13.785(4)，b = 21.426(6)，c = 25.203(8) A，beta = 96.51(6)°。
