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Features of Formation of Mononuclear and Binuclear Copper(II) Complexes with 2,2'-Bipyridyl and closo -Decaborate Anion
Russian Journal of Inorganic Chemistry ( IF 1.8 ) Pub Date : 2020-09-23 , DOI: 10.1134/s0036023620090119
E. A. Malinina , V. V. Avdeeva , S. E. Korolenko , S. E. Nefedov , L. V. Goeva , N. T. Kuznetsov

Abstract

The copper(I) complexation reaction with 2,2'-bipyridyl in the presence of salts of the closo-deca-borate anion has been studied in air in organic solvents (1,2-dichloroethane and DMF). It has been found that, as a result of the redox reaction, copper(II) coordination compounds with the [B10H10]2– anion and 2,2'-bipy-ridyl anion are prepared from known copper(I) complex [\({\text{Cu}}_{2}^{{\text{I}}}\)(Bipy)2[B10H10]] formed in situ. It has been shown that the reaction conditions (the process temperature and solvent nature) have a significant effect on the reaction path and, accordingly, on the composition and structure of the resulting complexes. Mono- and binuclear Cu(II) complexes [CuII(Bipy)2Cl]2[B10H10] and {[\({\text{Cu}}_{2}^{{{\text{II}}}}\)(Bipy)2(μ-OH)2][B10H10]} have been isolated and chara-cterized. According to X-ray diffraction, the structure of complex {[\({\text{Cu}}_{2}^{{{\text{II}}}}\)(Bipy)2(μ-OH)2][B10H10]} contains long Cu…H(B) contacts between the closo-decaborate anion and the metal atom.



中文翻译:

2,2'-联吡啶和closo-脱阴离子的单核和双核铜(II)配合物的形成特征

摘要

铜(I)络合2,2'-联吡啶在盐的存在下反应闭合碳-癸硼酸根阴离子已被研究了在有机溶剂(1,2-二氯乙烷和DMF)的空气。已经发现,由于氧化还原反应,由已知的铜(I)配合物制备了具有[B 10 H 10 ] 2-阴离子和2,2'-联吡啶基阴离子的铜(II)配位化合物。[ \({\ text {Cu}} _ {2} ^ {{\ text {I}}} \\)(Bipy)2 [B 10 H 10]]原位形成。已经表明,反应条件(工艺温度和溶剂性质)对反应路径具有显着影响,因此对所得配合物的组成和结构具有显着影响。单核和双核Cu(II)配合物[Cu II(Bipy)2 Cl] 2 [B 10 H 10 ]和{[ \({\ text {Cu}} _ {2} ^ {{\ text {II} }}} \)(Bipy)2(μ-OH)2 ] [B 10 H 10 ]}已被分离并表征。根据X射线衍射,复数{[ \({\ text {Cu}} _ {2} ^ {{{\ text {II}}}}} \)的结构(Bipy)2(μ-OH)2] [B 10 ħ 10 ]}包含长的Cu ... H(B)的之间的接触闭合碳-decaborate阴离子和金属原子。

更新日期:2020-09-24
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