. The monohydrido compounds (Mes)OsH(L)Cl (L = PMe3. PiPr3, PPh3, DMSO) are obtained from (Mes)Os(L)Cl2 by three different routes. Reaction of (Mes)OsH2(PMe3) weith HBF4 at −78°C in ether gives the BF4 salt of the cation [(Mes)OsH3(PMe3)]+, which according to the T1 value of > 2 s has a “classical” hydride structure. On protonation of (Mes)OsH(PiPr3)Cl with HBF4, the coordinatively unsaturated cation
                                    由[(
MES)OSCl 2 ] n(1)和
配体L以优异的收率制备了(
MES)OS(L)Cl 2(L = MeCN,PPh 3,PMe t Bu 2)配合物。1与1的反应过量CH 3 CO 2 Ag或CF 3 CO 2的Ag通向二的形成(
羧酸根)
锇化合物(
MES)OS(η 2 -O 2 CCH 3)(η 1 -O 2 CCH 3)和(
MES) OS(η 2 -O 2 CCF 3)(η1 -O 2 CCF 3)。的治疗1用
乙酸银等摩尔量给出了复合物(
MES)OS(η 2 -O 2 CCH 3)
氯。通过(
MES)OS(L)Cl 2通过三种不同的途径获得单氢化合物(
MES)OSH(L)Cl(L = PMe 3 .P i Pr 3,PPh 3,
DMSO)。(
MES)OSH 2(PMe 3)与HBF 4在-78°C的
乙醚中反应,得到阳离子[(
MES)OSH 3(PMe 3)] +的BF 4盐根据T 1值>