{[对甲苯基三溴化膦]溴}₂[Cu₂Br₆](Br₂)——一种含有分子溴的离子化合物。

{[P(o-tolyl)3]Br}2[Cu2Br6](Br2)--an ionic compound containing molecular bromine.

作者信息

Okrut Alexander, Feldmann Claus

机构信息

Institute of Inorganic Chemistry, University of Karlsruhe (TH), Engesserstrasse 15, Karlsruhe, Germany.

出版信息

Inorg Chem. 2008 Apr 21;47(8):3084-7. doi: 10.1021/ic7021038. Epub 2008 Mar 5.

DOI:10.1021/ic7021038

PMID:18318489

Abstract

Dark green cuboid-shaped crystals of the composition {[P(o-tolyl) 3]Br} 2[Cu 2Br 6](Br 2) are obtained by the reaction of P(o-tolyl) 3 and CuBr 2 with Br 2 in the ionic liquid [NMeBu 3][N(Tf) 2]. The bromocuprate crystallizes triclinic [space group P1; Z = 1; a = 10.667(2) A; b = 10.695(2) A; c = 11.582(2) A; alpha = 74.42(3) degrees ; beta = 75.64(3) degrees ; and gamma = 85.68(3) degrees ]. The title compound is constituted of {[P(o-tolyl) 3]Br} (+) cations and [Cu 2Br 6] (2-) anions and contains molecular dibromine [d Br-Br = 2.341(1) A]. The latter is verified by thermogravimetry and mass spectrometry.

摘要

通过在离子液体[NMeBu₃][N(Tf)₂]中使三（邻甲苯基）膦（P(o-tolyl)₃）与溴化铜（CuBr₂）和溴（Br₂）反应，得到了组成为{[P(o-tolyl)₃]Br}₂Cu₂Br₆的深绿色长方体晶体。溴铜酸盐以三斜晶系结晶[空间群P1；Z = 1；a = 10.667(2) Å；b = 10.695(2) Å；c = 11.582(2) Å；α = 74.42(3)°；β = 75.64(3)°；γ = 85.68(3)°]。标题化合物由{[P(o-tolyl)₃]Br}(+)阳离子和Cu₂Br₆阴离子组成，并含有分子态二溴[Br-Br键长d = 2.341(1) Å]。后者通过热重分析和质谱得到证实。