An Estimate of the Reduction Potential of B(C6F5)3 from Electrochemical Measurements on Related Mesityl Boranes
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- 作者：Sarah A. Cummings ; Masanori Iimura ; C. Jeff Harlan ; Rebecca J. Kwaan ; Isabelle Vu Trieu ; Jack R. Norton ; Brian M. Bridgewater ; Frieder Jä ; kle ; Anand Sundararaman ; and Mats Tilset
- 刊名：Organometallics
- 出版年：2006
- 出版时间：March 27, 2006
- 年：2006
- 卷：25
- 期：7
- 页码：1565 - 1568
- 全文大小：77K
- 年卷期：v.25,no.7(March 27, 2006)
- ISSN：1520-6041
文摘
MesB(C6F5)2 (1) has been prepared from MesMgBr and FB(C6F5)2·OEt2, while Mes2B(C6F5) (2) isreadily available from CuC6F5 and Mes2BBr. The reduction potential E
of 1 vs Cp2Fe0/+ in THF is-1.72 V, while that of 2 is -2.10 V, and that of Mes3B (3) is -2.73 V. 11B and 1H NMR show thatneither 1 nor 2 binds THF significantly. These results have been used to estimate the reduction potentialof B(C6F5)3 in THF as -1.17 V vs Cp2Fe0/+ or as -0.64 V vs SCE.
of 1 vs Cp2Fe0/+ in THF is-1.72 V, while that of 2 is -2.10 V, and that of Mes3B (3) is -2.73 V. 11B and 1H NMR show thatneither 1 nor 2 binds THF significantly. These results have been used to estimate the reduction potentialof B(C6F5)3 in THF as -1.17 V vs Cp2Fe0/+ or as -0.64 V vs SCE.