Novel Tris(pyrazolyl)borates Bearing Perfluoroalkyl Pigtails. Syntheses and Characterization of the Sodium and Copper(I) Complexes of [HB(3-(R)Pz)<sub>3</sub>]<sup>-</sup> (R = C<sub>2</sub>F<sub>5</sub>, C<sub>3</sub>F<sub>7</sub>; Pz = Pyrazolyl)
作者:H. V. Rasika Dias、Hyoung-Juhn Kim
DOI:10.1021/om960727p
日期:1996.12.10
characterized. These pyrazoles react with NaBH4 to yield sodium salts of [HB(3-(C2F5)Pz)3]- and [HB(3-(C3F7)Pz)3]-. The X-ray crystal structure of [HB(3-(C2F5)Pz)3]Na(3-(C2F5)PzH) shows close contacts between the sodium atom and fluorine atoms of the −C2F5 substituents. The copper−carbon monoxide adducts [HB(3-(C2F5)Pz)3]CuCO and [HB(3-(C3F7)Pz)3]CuCO were prepared by the treatment of CuOTf with 1 equiv of the
合成并充分表征了3-(五氟乙基)吡唑和3-(七氟丙基)吡唑。这些吡唑与NaBH 4反应,生成[HB(3-(C 2 F 5)Pz)3 ] -和[HB(3-(C 3 F 7)Pz)3 ] -的钠盐。[HB(3-(C 2 F 5)Pz)3 ] Na(3-(C 2 F 5)PzH)的X射线晶体结构显示-C 2 F的钠原子和氟原子之间紧密接触5个取代基。铜一氧化碳加合物[HB(3-(C 2F 5)Pz)3 ] CuCO和[HB(3-(C 3 F 7)Pz)3 ] CuCO的制备方法是:在CO中,用1当量的相应的三(吡唑基)硼酸钠处理CuOTf。配合物的特征在于1 H,13 C和19 F NMR和IR光谱。[HB(3-(CF 3)Pz)3 ] CuCO,[HB(3-(C 2 F 5)Pz)3 ] CuCO和[HB(3-(C 3 F 7)Pz)的红外光谱数据3 ] CUCO没有表现出在一个υ差异显著CO值,但值得注意地是低于相应υ