Hydricities of BzNADH, C5H5Mo(PMe3)(CO)2H, and C5Me5Mo(PMe3)(CO)2H in Acetonitrile

详细信息    查看全文

• 作者：William W. Ellis ; James W. Raebiger ; Calvin J. Curtis ; Joseph W. Bruno ; and Daniel L. DuBois
• 刊名：Journal of the American Chemical Society
• 出版年：2004
• 出版时间：March 10, 2004
• 年：2004
• 卷：126
• 期：9
• 页码：2738 - 2743
• 全文大小：74K
• 年卷期：v.126,no.9(March 10, 2004)
• ISSN：1520-5126

文摘

The thermodynamic hydride donor abilities of 1-benzyl-1,4-dihydronicotinamide (BzNADH, 59± 2 kcal/mol), C₅H₅Mo(PMe₃)(CO)₂H (55 ± 3 kcal/mol), and C₅Me₅Mo(PMe₃)(CO)₂H (58 ± 2 kcal/mol)have been measured in acetonitrile by calorimetric and/or equilibrium methods. The hydride donor abilitiesof BzNADH and C₅H₅Mo(PMe₃)(CO)₂H differ by 13 and 24 kcal/mol, respectively, from those reportedpreviously for these compounds in acetonitrile. These results require significant revisions of the hydricitiesreported for related NADH analogues and metal hydrides. These compounds are moderate hydride donorsas compared to previously determined compounds.