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 complexesstabilized by triphenyl ligands

作　　者：杜启露 赵丽[1] 聂鹏 许波[1] DU Qilu;ZHAO Li;NIE Peng;XU Bo(Guizhou Institute for Food and Drug Control,Guiyang 550004,China)

机构地区：[1]贵州省食品药品检验所,贵阳550004

出　　处：《无机化学学报》2024年第6期1088-1094,共7页Chinese Journal of Inorganic Chemistry

基　　金：贵州省科技厅基金(黔科合基础-ZK[2021]一般041)资助。

摘　　要：研究了锇-锗单键双金属配合物[OsGe(ArTrip)(PPh_(3))(H)Cl_(2)](1)的反应性,其中ArTrip=C_(6)H_(3)-2-(η^(6)-Trip)-6-Trip,Trip=2,4,6-iPr_(3)-C_(6)H_(3)。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)(PPh_(3))(H)Br_(2)](2);1与LiHBEt_(3)反应合成了锗原子上氯原子被乙基取代的产物[OsGe(ArTrip)(PPh_(3))(H)Et_(2)](3);1与HBF4作用合成了加成产物[OsGe(ArTrip)(PPh_(3))(H)_(2)Cl_(2)]BF_(4)(4)。配合物4不稳定,在H_(2)O(nH_(2)O/n_(4)=1)作用下能转化为配合物1。Reaction of[OsGe(ArTrip)(PPh_(3))(H)Cl_(2)](1),where ArTrip=C_(6)H_(3)-2-(η^(6)-Trip)-6-Trip and Trip=2,4,6-iPr3-C_(6)H_(3),with Grignard reagent EtMgBr afforded[OsGe(ArTrip)(PPh_(3))(H)Br_(2)](2)and[OsGe(ArTrip)(PPh_(3))(H)Et_(2)](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 LiHBEt_(3)also led to the formation of 3 without hydrogenation.Moreover,complex 1 reacted with HBF_(4)to yield additional product[OsGe(ArTrip)(PPh_(3))(H)_(2)Cl_(2)]BF_(4)(4),which converted back to 1 in the presence of H_(2)O(nH_(2)O/n_(4)=1).CCDC:2323263,2;2323264,4.

关 键 词：锇 锗 双金属配合物 取代 加成 

分 类 号：O614.824[理学—无机化学] O614.431[理学—化学]