CRYSTAL STRUCTURE OF CALCIUM cis(N)-bis(IMINODIACETATO)CHROMATE(III) NONAHYDRATE Ca[Cr(Ida)2]2•9H2O

被引：3

作者：

Zabel, M. ^{[1
]}

Pavlovskii, V. I. ^{[2
]}

Poznyak, A. L. ^{[2
]}

机构：

[1] Univ Regensburg, Inst Inorgan Chem, D-8400 Regensburg, Germany

[2] Natl Acad Sci, BI Stepanov Phys Inst, Minsk, BELARUS

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2009年 / 50卷 / 03期

关键词：

crystal structure; bis(iminodiacetato)chromate(III) ion; calcium salt;

D O I：

10.1007/s10947-009-0090-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the crystals of [Ca(H2O)(5)][Cr(Ida)(2)](2) center dot 4H(2)O (triclinic symmetry, a = 10.1056(10) angstrom, b = 13.0077(11) angstrom, c = 13.1185(13) angstrom, alpha = 70.186(11)degrees, beta = 81.248(11)degrees, gamma = 78.996(11)degrees, Z = 2, space group P (1) over bar) cyclic centrosymmetric tetramers are present. In them calcium ions are bonded to oxygen atoms of the carboxyl groups of two octahedral complex cis(N)-[Cr(Ida)(2)](-) ions (Ida is the iminodiacetic acid anion). The O atoms of five water molecules complete the Ca atom environment to a distorted pentagonal bipyramid. Isolated [Cr(Ida)(2)](-) ions of a similar structure neutralize the positive charge of tetramers.

引用

页码：582 / 584

页数：3

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