Gold(III) Phenylphosphides and -phosphodiides

详细信息    查看全文

• 作者：M. Carmen Blanco ; Eduardo J. Ferná ; ndez ; M. Elena Olmos ; Javier Pé ; rez ; Olga Crespo ; Antonio Laguna ; and Peter G. Jones
• 刊名：Organometallics
• 出版年：2004
• 出版时间：September 13, 2004
• 年：2004
• 卷：23
• 期：19
• 页码：4373 - 4381
• 全文大小：164K
• 年卷期：v.23,no.19(September 13, 2004)
• ISSN：1520-6041

文摘

In this paper we describe the synthesis of a series of cyclic and acyclic gold phosphine,phosphide, and phosphodiide derivatives of the primary phosphine PPhH₂. Thus, by reacting[Au(C₆F₅)_x(tht)] (x = 1, 3) with an equimolecular amount of PPhH₂, the phosphino complexes[Au(C₆F₅)_x(PPhH₂)] (x = 1, 3) are obtained. The gold(III) complex [Au(C₆F₅)₃(PPhH₂)] reactswith gold(I), silver(I), or gold(III) reagents in the presence of a deprotonating agent, leadingto the new di- or trinuclear phenylphosphide derivatives [Au(C₆F₅)₃(ges/entities/mgr.gif">-PPhH)Au(PR₃)] (R =Ph, Me), PPN[{Au(C₆F₅)₃}₂(ges/entities/mgr.gif">-PPhH)], or PPN[{Au(C₆F₅)₃(ges/entities/mgr.gif">-PPhH)}₂M] (M = Au, Ag). Theanionic gold(III) complex PPN[{Au(C₆F₅)₃}₂(ges/entities/mgr.gif">-PPhH)] further reacts with similar gold(I)precursors to afford higher nuclearity phosphodiide species, such as PPN[{Au(C₆F₅)₃}₂(ges/entities/mgr.gif">₃-PPh){Au(PPh₃)}], (PPN)₂[{Au(C₆F₅)₃}₂(ges/entities/mgr.gif">₃-PPh){Au(C₆F₅)}], or (PPN)₃[{(Au(C₆F₅)₃)₂(ges/entities/mgr.gif">₃-PPh)}₂Au]. Furthermore, treatment of [Au(C₆F₅)₂(ges/entities/mgr.gif">-Cl)]₂ with PPhH₂ results in the formation ofthe cyclic trinuclear complex [Au(C₆F₅)₂(ges/entities/mgr.gif">-PPhH)]₃, which can further react with [Au(acac)(PPh₃)] to afford the tetranuclear phosphide/phosphodiide derivative [{Au(C₆F₅)₂(ges/entities/mgr.gif">-PPhH)}₂{Au(C₆F₅)₂(ges/entities/mgr.gif">₃-PPh)Au(PPh₃)}]. The crystal structures of compounds PPN[{Au(C₆F₅)₃}₂(ges/entities/mgr.gif">-PPhH)], [{Au(C₆F₅)₃}(ges/entities/mgr.gif">₃-PPh){Au(PPh₃)}₂], and [Au(C₆F₅)₂(ges/entities/mgr.gif">-PPhH)]₃ have been determinedby X-ray diffraction methods.