三联苯基配体稳定的锇-锗配合物合成及表征
Synthesis and characterization of osmium-germyl complexes stabilized by triphenyl ligands
作者单位E-mail
杜启露 贵州省食品药品检验所, 贵阳 550004  
赵丽 贵州省食品药品检验所, 贵阳 550004  
聂鹏 贵州省食品药品检验所, 贵阳 550004 niepeng2001@163.com 
许波 贵州省食品药品检验所, 贵阳 550004  
摘要: 研究了锇-锗单键双金属配合物[OsGe(ArTrip)(PPh3)(H)Cl2] (1)的反应性,其中ArTrip=C6H3-2-(η6-Trip)-6-Trip,Trip=2,4, 6-iPr3-C6H3。通过与不同试剂反应,成功合成并表征了3个新型锇-锗双金属配合物。通过配合物1与EtMgBr反应合成了锗原子上氯原子被溴原子取代的产物[OsGe(ArTrip)(PPh3)(H)Br2] (2);1与LiHBEt3反应合成了锗原子上氯原子被乙基取代的产物[OsGe(ArTrip)(PPh3)(H)Et2] (3);1与HBF4作用合成了加成产物[OsGe(ArTrip)(PPh3)(H)2Cl2]BF4 (4)。配合物4不稳定,在H2O (nH2O/n4=1)作用下能转化为配合物1
关键词:     双金属配合物  取代  加成
基金项目: 贵州省科技厅基金(黔科合基础-ZK[2021]一般041)资助。
Abstract: Reaction of [OsGe(ArTrip)(PPh3)(H)Cl2] (1), where ArTrip=C6H3-2-(η6-Trip)-6-Trip and Trip=2,4,6-iPr3-C6H3, with Grignard reagent EtMgBr afforded [OsGe(ArTrip)(PPh3)(H)Br2] (2) and [OsGe(ArTrip)(PPh3)(H)Et2] (3), respectively, depending on the temperature and reaction molar ratio. Unexpected formation of 2 and 3 underwent replacement of Cl atom on Ge center with Br instead of Et group. In addition, the treatment of 1 with LiHBEt3 also led to the formation of 3 without hydrogenation. Moreover, complex 1 reacted with HBF4 to yield additional product [OsGe(ArTrip)(PPh3)(H)2Cl2]BF4 (4), which converted back to 1 in the presence of H2O (nH2O/n4=1).
Keywords: osmium  germanium  bimetallic complex  substitution  addition
投稿时间:2024-01-04 修订日期:2024-03-16
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杜启露,赵丽,聂鹏,许波.三联苯基配体稳定的锇-锗配合物合成及表征[J].无机化学学报,2024,40(6):1088-1094.
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