羧酸铑(Ⅱ)轴向配合物的合成、表征及催化性能  

Synthesis,structure characterization and catalytic properties of rhodium(Ⅱ)carboxylate axial complex

作　　者：倪文若 刘学 余娟 高安丽 田乙然 童应成 张振强 刘伟平 NI Wenruo;LIU Xue;YU Juan;GAO Ani;TIAN Yiran;TONG Yingcheng;ZHANG Zhenqiang;LIU Weiping(Yunnan Precious Metals Laboratory Co.Ltd.,Kunming 650106,China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals,Kunming 650106,China)

机构地区：[1]云南贵金属实验室有限公司,昆明650106 [2]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2024年第1期56-63,共8页Precious Metals

基　　金：云南省基础研究专项-重点项目(202101AS070049);云南贵金属实验室科技计划项目(YPML-2022050232);云南省贵金属新材料控股集团有限公司R&D项目(2020040602)。

摘　　要：以羧酸铑(Ⅱ)为母体,吡啶-2-基(吡啶-4-基)甲酮(24ma)为轴向配体,合成了4种新型羧酸铑(Ⅱ)轴向配合物,且成功培养出化合物单晶。使用^(1)HNMR、^(13)CNMR、MS、IR和X-单晶射线衍射对其结构进行表征,讨论了取代基和轴向配体对分子结构的影响,并初步测试了它们对美罗培南类化合物合成反应的催化性能。结果表明,与母体分子羧酸铑(Ⅱ)相比,所选定的羧酸铑(Ⅱ)轴向配合物因在反应体系中溶解度较差、配体不易解离等原因,导致催化合成美罗培南类化合物的产率不高。Four novel axial complexes of rhodium(Ⅱ)carboxylate pyridin-2-yl(pyridin-4-yl)ketone were synthesized with rhodium(Ⅱ)carboxylate as the main body,and the single crystals were successfully grown.Their structures were characterized by ^(1)H NMR,^(13)C NMR,MS,IR and X-ray single crystal diffractions.The effects of substituents and axial ligands on the molecular structure were discussed,and their catalytic properties for the synthesis of meropenem like compounds were preliminarily tested.The results showed that compared with the parent molecule rhodium carboxylate(Ⅱ),the selected axial complex of rhodium carboxylate(Ⅱ)had poor solubility in the reaction system,and the ligand was not easy to dissociate,which led to the low yield of catalytic synthesis of meropenem compounds.

关 键 词：双核羧酸铑(Ⅱ)配合物 晶体结构 键长 催化性能 

分 类 号：O614.8[理学—无机化学]