Synthesis and characterization of osmium-germyl complexes stabilized by triphenyl ligands
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(nHO/n4=1).CCDC:2323263,2;2323264,4.
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