National Changhua University of Education Institutional Repository : Item 987654321/18874
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题名: Synthesis, Characterization, and Acidity Properties of [MCl(H2)(L)(PMP)]BF4 (M = Ru, L = PPh3, CO;M = Os, L = PPh3;PMP = 2,6-(Ph2PCH2)2C5H3N)
作者: Jia, Guochen;Lee, Hon Man;Ian D. Williams;Lau, Chak-Po;Chen, Yuzhong
贡献者: 化學系
日期: 1997-09
上传时间: 2014-08-14T04:28:25Z
出版者: American Chemical Society
摘要: Treatment of RuCl2(PPh3)3 with PMP (PMP = 2,6-(Ph2PCH2)2C5H3N) in acetone produced RuCl2(PPh3)(PMP), which has been characterized by X-ray diffraction. Treatment of RuCl2(PPh3)(PMP) with NaBH4 in methanol gave RuHCl(PPh3)(PMP), acidification of which with HBF4�Et2O produced the molecular dihydrogen complex [RuCl(H2)(PPh3)(PMP)]BF4. Treatment of RuHCl(CO)(PPh3)3 with PMP in benzene produced RuHCl(CO)(PMP), which reacted with HBF4�Et2O to give the molecular dihydrogen complex [RuCl(H2)(CO)(PMP)]BF4. The osmium molecular dihydrogen complex [OsCl(H2)(PPh3)(PMP)]BF4 was prepared by protonation of OsHCl(PPh3)(PMP) with HBF4�Et2O. Relative acidities of the dihydrogen complexes were investigated by NMR spectroscopy of equilibrium reactions conducted in CD2Cl2. [RuCl(H2)(CO)(PMP)]BF4 is more acidic than [RuCl(H2)(PPh3)(PMP)]BF4, which is in turn more acidic than its osmium analog [OsCl(H2)(PPh3)(PMP)]BF4.
關聯: Organometallics, 16(18): 3941-3949
显示于类别:[化學系] 期刊論文

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