methods. That of the hydrido compound 9 has been established in solution by NMR analysis and confirmed by an X-ray study of the μ-azavinylidene derivative [Mo2Cp2(μ-SMe)2(μ-PPh2)(μ-NCHMe)] (10) obtained from the insertion of acetonitrile into the Mo–H bond of 9. Reaction of NaBH4 with nitrile derivatives, [Mo2Cp2(μ-SMe)4−n(CH3CN)2n]n+ (5, n=1; 6n=2), afforded the tetrahydroborato compound 8, together with
单-或二
氯- dimolybdenum(的反应III)配合物[沫2的CP 2(μ-SME)2(μ-Cl)的(μ-Y)](CP = η 5 -C 5 H ^ 5 ; 1,Y = SMe; 2,Y = PPh 2;3,Y = Cl)和NaBH 4在室温下产生,取决于辅助
配体,四氢
硼酸酯(8),氢(9)或
金属
硼烷(12)络合物的产率高。衍
生物8和12的正确配方X射线衍射法已明确确定了这一点。也就是说的氢基化合物9已建立了通过NMR分析溶液,并确认由所述μ-azavinylidene衍
生物的X射线研究[沫2的CP 2(μ-SME)2(μ-PPH 2)(μ-N C
HME )](10)是通过将
乙腈插入9的Mo–H键中获得的。NaBH 4与腈衍
生物[Mo 2 CP 2(μ-SMe)4− n(CH 3 CN)2 n ] n + (5,n = 1;6 Ñ = 2),得到tetrahydroborato化合物