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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Five-Coordinate Geometry of Cadmium(II) with Octahedral Bidentate-S,S Complex-Ligand cis(S)-[Co(aet)_2(en)]~+ (aet=2-aminoethanethiolate): Synthesis, Crystal Structues and Interconversion of S-Bridged Co~(III)Cd~(II) Polynuclear Complexes
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Five-Coordinate Geometry of Cadmium(II) with Octahedral Bidentate-S,S Complex-Ligand cis(S)-[Co(aet)_2(en)]~+ (aet=2-aminoethanethiolate): Synthesis, Crystal Structues and Interconversion of S-Bridged Co~(III)Cd~(II) Polynuclear Complexes

机译：用八面体二齿-S，S复合配体CIS（S） - [CO（AET）_2（ZH）]〜+（AET = 2-氨基乙酰胆碱）：合成，晶体结构和互联的镉（II）的五坐标几何形状。 S-桥接CO〜（III）CD〜（II）多核配合物

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摘要

An S-bridged Co~(III)Cd~(II) dinuclear complex molecule, [CdCl_3{Co(aet)_2(en)}]~0 ([1]) (aet = 2-aminoethanethiolate, en = ethylenediamine), was prepared by the reaction of an S-bridged Co~(III)Ni~(II)Co~(III) trinuclear complex salt, [Ni{Co-(aet)_2(en)}_2]Cl_4, with excess CdCl_2 in water. Treatment of [1] with NaNO_3 in water gave an S-bridged Co~(III)Cd~(II)Co~(III) dinuclear complex salt, [CdCl{Co(aet)_2(en)}_2](NO_3)_3 ([2](NO_3)_3), which was further converted to a (Co~(III)Cd~(II)Co~(III))_2 hexanuclea complex salt, [Cd_2Cl{Co(aet)_2(en)}_4](NO_3)_7 ([3](NO_3)_7), by treatment with NaNO_3 in water. The crystal structures of [1], [2](NO_3)_3 and [3](NO_3)_7 wre determined by X-ray crsytallography. In [1] Cd~(II) ion is coordinated by three Cl~- ions besides two S atoms from one octahedral C_2-cis(S)-[Co(aet)_2(en)]~+ units. The coordination geometry of each Cd~(II) center in [1], [2]~(3+) is described as a distorted trigonal-bipyramid, considering an angular structural parameter, X, which is proposed as a moified index of trigonality. The reverse conversions of [3]~(7+) to [2]~(3+) and [2]~(3+) to [1] were also achieed by treatment with NaCl in water.
机译：S-桥接CO〜（III）CD〜（II）二核络合物分子，[CDCL_3 {CO（AET）_2（EN）}]〜0（[1]）（AET = 2-氨基乙烯酰甲磺酸盐，EN =乙二胺），通过S-桥接CO〜（III）Ni〜（III）CO〜（III）三核复合物盐的反应制备，[Ni {Co-（AET）_2（ZH）} _ 2] CL_4，具有过量的CDCL_2水。用水中的纳米_3处理[1]给予S桥CO〜（III）CD〜（III）的二核复合物盐，[CDCL {CO（AET）_2（ZH）} _ 2]（NO_3） _3（[2]（NO_3）_3），其进一步转化为（CO〜（III）CD〜（II）CO〜（III）CO〜（III））_ 2六核酸复合物盐，[CD_2CL {CO（AET）_2（EN） } _4]（NO_3）_7（[3]（NO_3）_7），通过用纳米水处理处理。由X射线Crsytallography确定的[1]，[2]（NO_3）_3和[3]（NO_3）_7 WRE的晶体结构。在[1] CD〜（ii）离子中由三个Cl〜离子配位，除了来自一个八面体C_2-CIS（S） - [CO（AET）_2（ZH）]〜+单元的两个原子。 [1]，[2]〜（3+）中的每种CD〜（II）中心的协调几何形状被描述为扭曲的三角形 - 双霉菌，考虑到角度结构参数X，这被提出为Trigonality的逐步指数。通过用NaCl在水中处理，[3]〜（7+）至[2]〜（3+）和[2]〜（3+）至[1]的反转还原。

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