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辛酸铑(Ⅱ)的合成及其结构表征
Synthesis and Structure of Rhodium Octanoate
【摘要】 以三氯化铑为原料,在弱酸性条件下,直接与辛酸回流反应,成功制备了辛酸铑(II),产率>95%,产品纯度>99.0%,适合工业化生产要求。辛酸铑(II)样品通过质谱分析、红外光谱分析和单晶X射线衍射分析确定为二聚体,以羧基为桥联配体,形成灯笼状的空间立体结构。
【Abstract】 A new method was established to synthesize rhodium octanoate,an important catalyst for C-H insertion process.The direct reaction between RhCl3·3H2O and C7H15COOH in water at pH≈5 produced rhodium octanoate with a yield of more than 95% based on RhCl3·3H2O.The purity of the product was determined by HPLC to be greater than 99.0%.The structural studies by MS,IR,NMR and single X-ray diffraction reveal that rhodium octanoate is a dimeric coordination compound in which two rhodium atoms are bridged by four octanoate COO-groups,forming ’lantern-like’ structure.
【基金】 国家科技支撑计划课题(2012BAE06B08);国家科研院所技术开发专项课题(2012EG115008)资助
- 【文献出处】 贵金属 ,Precious Metals , 编辑部邮箱 ,2012年04期
- 【分类号】O643.36
- 【下载频次】189