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Probing the Structure, Dynamics, and Bonding of Coinage Metal Complexes of White Phosphorus

机译:探索白磷造币金属络合物的结构,动力学和键合

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摘要

A series of cationic white phosphorus complexes of the coinage metals Au and Cu have been synthesised and characterised both in the solid state and in solution. All complexes feature a P-4 unit coordinated through an edge P-P vector ((2)-like), although the degree of activation (as measured by the coordinated P-P bond length) is greater in the gold species. All of the cations are fluxional on the NMR timescale at room temperature, but in the case of the gold systems fluxionality is frozen out at -90 degrees C. Electronic structure calculations suggest that this fluxionality proceeds via an (1)-coordinated M-P-4 intermediate.
机译:合成了一系列造币金属Au和Cu的阳离子白磷络合物,并在固态和溶液中进行了表征。所有配合物的特征都是通过边缘P-P向量((类似)(2))进行协调的P-4单元,尽管金类中的活化程度(通过协调的P-P键长测量)更大。在室温下,所有阳离子在NMR时标上均具有通量,但在金系统中,通量在-90摄氏度下冻结。电子结构计算表明,这种通量是通过(1)配位的MP-4进行的中间。

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