The reactivity of difluoro Au(III) cations supported by pyridine or imidazole ligands is reported. The Au(III)–F bond is found to be susceptible to metathesis by TMS reagents and reagents bearing acidic protons such as H–CC–Ph and HOAc. In the last case the reactions are slower than analogous reactions reported by other groups, where strong trans donors are present opposite the Au–F bond. This, coupled with the inability to effect metathesis on only one Au–F bond in our system, indicates that the trans effect is a key consideration in Au–F chemistry.

中文翻译：

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N配体负载的阳离子Au（III）二氟化物的反应性研究

据报道由吡啶或咪唑配体支撑的二氟Au（III）阳离子的反应性。发现TMS试剂和带有酸性质子的试剂（例如H-CC-Ph和HOAc）易发生Au（III）-F键易位。在最后一种情况下，该反应比其他小组报告的类似反应慢，在其他小组中，Au–F键对面存在强反式供体。加上无法在我们系统中的一个Au-F键上实现复分解，这表明反式效应是Au-F化学中的关键考虑因素。