Thermochromism and structure of piperazinium tetrachlorocuprate(II) complexes

被引：31

作者：

Riley, MJ ^{[1
]}

Neill, D ^{[1
]}

Bernhardt, PV ^{[1
]}

Byriel, KA ^{[1
]}

Kennard, CHL ^{[1
]}

机构：

[1] Univ Queensland, Dept Chem, Brisbane, Qld 4072, Australia

来源：

INORGANIC CHEMISTRY | 1998年 / 37卷 / 14期

关键词：

D O I：

10.1021/ic971612w

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The tetrachlorocuprate(II) ion can crystallize in two different structures with the piperazinium dication (pipzH(2)). Both structures contain discrete CuCl42- species. A yellow compound (pipzH(2))[CuCl4]. 2H(2)O (1) is monoclinic (C2/c, Z = 4, a = 10.538(3) Angstrom, b = 7.4312(5) Angstrom, c = 17.281(4) Angstrom, beta = 111.900(10)degrees) and contains the CuCl42- ion as a distorted tetrahedron. A green compound (pipzH(2))(2)[CuCl4]. Cl-2. 3H(2)O (2) is triclinic (P (1) over bar, Z = 2, a = 9.264(3) Angstrom, b = 10.447(2) Angstrom, c = 11.366(2) Angstrom, alpha = 68.38 degrees, beta = 82.86(2)degrees, gamma = 83.05(2)degrees) and contains the CuCl42- ion with a square planar geometry. This latter compound shows thermo/photochromism, changing from green to yellow upon heating or laser irradiation.

引用

页码：3635 / 3639

页数：5

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