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http://ir.ncue.edu.tw/ir/handle/987654321/18874
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| Title: | 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) |
| Authors: | Jia, Guochen;Lee, Hon Man;Ian D. Williams;Lau, Chak-Po;Chen, Yuzhong |
| Contributors: | 化學系 |
| Date: | 1997-09
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| Issue Date: | 2014-08-14T04:28:25Z
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| Publisher: | American Chemical Society |
| Abstract: | 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. |
| Relation: | Organometallics, 16(18): 3941-3949 |
| Appears in Collections: | [化學系] 期刊論文
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