An estimate of the reduction potential of B(C6F5)3 from electrochemical measurements on related mesityl boranes
An estimate of the reduction potential of B(C6F5)3 from electrochemical measurements on related mesityl boranes
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DOI：
10.1021/om050003q
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发表时间：
2006-03-27
期刊：
影响因子：
2.8
通讯作者：
Tilset, M
中科院分区：
文献类型：
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作者：
Cummings, SA;Iimura, M;Tilset, M
由MesMgBr和FB(C6F5)(2)(OEt2)- o -制备了MesB(C6F5)(2)(1)。而Mes(2)B(C6F5)(2)很容易从CuC6F5和Mes(2)BBr中得到。1 vs Cp2Fe0/+在THF中的还原电位E度为- 1.72 V， 2还原电位E度为-2.10 V, Mes(3)B(3)还原电位E度为-2.73 V。B-11和H-1核磁共振显示，I和2都没有明显结合THF。这些结果被用来估计B(C6F5)(3)在THF中的还原电位为-1.17 V vs Cp2Fe0/+或-0.64 V vs SCE。
MesB(C6F5)(2) (1) has been prepared from MesMgBr and FB(C6F5)(2)(OEt2)-O-., while Mes(2)B(C6F5) (2) is readily available from CuC6F5 and Mes(2)BBr. The reduction potential E degrees of 1 vs Cp2Fe0/+ in THF is - 1.72 V, while that of 2 is -2.10 V, and that Of Mes(3)B (3) is -2.73 V. B-11 and H-1 NMR show that neither I nor 2 binds THF significantly. These results have been used to estimate the reduction potential of B(C6F5)(3) in THF as -1.17 V vs Cp2Fe0/+ or as -0.64 V vs SCE.