On the structures and properties of Cr(DMSO)(6)(3+) and the coordination polymer cis-Cr(III)(oxalate)(2)(DMSO)(2) K(DMSO)(2) (n)
On the structures and properties of Cr(DMSO)(6)(3+) and the coordination polymer cis-Cr(III)(oxalate)(2)(DMSO)(2) K(DMSO)(2) (n)
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DOI:
10.1016/s0020-1693(00)00126-2
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发表时间:
2000-07
影响因子:
2.8
通讯作者:
L. Öhrström;G. Svensson
中科院分区:
文献类型:
--
作者:
L. Öhrström;G. Svensson
cis-Cr(III)(oxalate)2(DMSO)2K(DMSO)2was formed by K3Cr(oxalate)3in dimethylsulfoxide–THF mixtures. The structure is ribbon-like with cis-Cr(oxalate)2(DMSO)2−complex ions bridged by oxalates to (DMSO)K(DMSO)2K(DMSO) units forming interconnected rings of six metal complexes. In the same type of solutions Cr(DMSO)6(NO3)3was also formed. In this structure Cr(III) is six-coordinated by oxygens from DMSO. Cr(DMSO)6(NO3)3is isostructural with Fe(DMSO)6(NO3)3(J.R. Tzou et al., Acta Crystallogr., Sect. C, 51 (1995) 2249). The Cr(III)O distance shows an expected shortening of about 0.04 Å compared to the Fe(III)O bond in Fe(DMSO)6(NO3)3.