Mori, M.; Shibata, M.; Kyuno, E., Bulletin of the Chemical Society of Japan, 1956, vol. 29, p. 887 - 890
作者:Mori, M.、Shibata, M.、Kyuno, E.、Nakajima, H.
DOI:——
日期:——
Crystal structure of NaBa2[Co(Edta)]2(ClO4)3 · 9H2O
作者:M. Zabel、V. I. Pawlowski、A. L. Poznyak
DOI:10.1134/s1070328406090053
日期:2006.9
Crystals of Ba Na ethylenediaminetetraacetatocobaltate(III) perchlorate, NaBa2[Co(Edta)](2)(ClO4)(3)center dot 9H(2)O, contain two crystallographically nonequivalent Ba2+ cations and two complex cations [Co(Edta)](Edta(4-) is ethylenediaminetetraacetic acid anion), the latter anions showing opposite chirality. The nearest surrounding of the Ba2+ ions involves three water molecules (including two bridging water molecules), six O atoms of four complexes [Co(Edta)]- and the perchlorate O atom. Tetrameric fragments Ba-2(H2O)(4)[Co(Edta)](2)(ClO4)(2) are united through the Ba-O bonds into layers with the Ba atoms in the middle of the layers and the perchlorate ions and complex anions at the periphery; in the latter anions, noncoordinated O atom of one of the R-metallocycles is directed outside. The Na atom of the Na(H2O)(ClO4) group located between the layers is bonded to these O atoms of the neighboring layers.
The CD Spectra of Carbonato Complexes of the [Co(CO<sub>3</sub>)(O,O)(N)<sub>2</sub>]<sup>−</sup>and [Co(CO<sub>3</sub>)(N)<sub>4</sub>]<sup>+</sup>Types and Related Diaqua Complexes
作者:Kenshi Tsuji、Shuhei Fujinami、Muraji Shibata
DOI:10.1246/bcsj.54.1531
日期:1981.5
Five carbonato complexes, [Co(CO3)(ox)(tn)]−, cis-[Co(CO3)(ox)(py)2]−, cis·cis-[Co(CO3)(NH3)2(py)2]+, cis-[Co(CO3)(en)(py)2]+, cis-[Co(CO3)(NH3)2(bpy)]+, and two related complexes, cis-[Co(ox)(NH3)2(en)]+ and cis-[Co(mal)(NH3)2(en)]+, have been prepared and resolved. The solution CD spectra of these resolved complexes and those of diaqua complexes derived from the carbonato complexes have been measured
五种碳酸配合物,[Co(CO3)(ox)(tn)]−, cis-[Co(CO3)(ox)(py)2]−, cis·cis-[Co(CO3)(NH3)2(py) )2]+, cis-[Co(CO3)(en)(py)2]+, cis-[Co(CO3)(NH3)2(bpy)]+,以及两个相关的复合物,cis-[Co(ox) )(NH3)2(en)]+ 和顺式-[Co(mal)(NH3)2(en)]+ 已制备并解析。已经测量了这些解析的配合物和衍生自碳酸配合物的 diaqua 配合物的溶液 CD 光谱。第一吸收带(T1g 带)区域中的 CD 光谱比较表明,每种碳酸根配合物与相应的 diaqua 配合物之间的 Cotton 峰符号存在关系。基于这种关系,已经建立了当前复合物的绝对构型的分配。