以[HB(3,5-(CF3)2Pz)3]Ag(THF)作为配体转移剂合成高氟化三(吡唑基)硼酸铝和锌烷基配合物。

Syntheses of aluminum and zinc alkyl complexes of a highly fluorinated tris(pyrazolyl)borate using [HB(3,5-(CF3)2Pz)3]Ag(THF) as the ligand transfer agent.

作者信息

Dias H V Rasika, Jin Wiechang

机构信息

Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA.

出版信息

Inorg Chem. 2003 Aug 25;42(17):5034-6. doi: 10.1021/ic0345875.

DOI:10.1021/ic0345875

PMID:12924870

Abstract

Dimethylaluminum or ethylzinc complexes of highly fluorinated tris(pyrazolyl)borate ligand HB(3,5-(CF(3))(2)Pz)(3) can be obtained in excellent yield from the reaction between the silver adduct [HB(3,5-(CF(3))(2)Pz)(3)]Ag(THF) and the metal alkyl reagent Me(3)Al or Et(2)Zn. The X-ray crystal structure of [HB(3,5-(CF(3))(2)Pz)(3)]AlMe(2) shows that the tris(pyrazolyl)borate ligand coordinates to the aluminum center in kappa(2)-fashion. [HB(3,5-(CF(3))(2)Pz)(3)]ZnEt features the typical kappa(3)-bonded ligand.

摘要

高氟化三（吡唑基）硼酸配体[HB(3,5-(CF(3))(2)Pz)(3)]⁻的二甲基铝或乙基锌配合物可以通过银加合物[HB(3,5-(CF(3))(2)Pz)(3)]Ag(THF)与金属烷基试剂Me(3)Al或Et(2)Zn之间的反应以优异的产率获得。[HB(3,5-(CF(3))(2)Pz)(3)]AlMe(2)的X射线晶体结构表明，三（吡唑基）硼酸配体以κ(2)方式与铝中心配位。[HB(3,5-(CF(3))(2)Pz)(3)]ZnEt具有典型的κ(3)键合配体。