Preparation and stereochemistry of bis(ethylenediamine)cobalt(III) complexes with selenium donor atom.
Preparation and stereochemistry of bis(ethylenediamine)cobalt(III) complexes with selenium donor atom.
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硒供体原子双(乙二胺)钴(III)配合物的制备及其立体化学。
DOI：
10.1246/bcsj.57.3104
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发表时间：
1984
影响因子：
4
通讯作者：
J. Hidaka
中科院分区：
文献类型：
--
作者：
T. Konno;K. Okamoto;J. Hidaka
合成了五种[Co（bidentate-N，Se）（en）2]型旋光钴（III）配合物，其中bidentate-N，Se表示2-氨基乙硒烯醇（aes），2-氨基乙硒烯醇（aesee），2-（甲硒基）乙胺（mseea），2-（乙硒基）乙胺（esea）和2-（苄硒基）乙胺（bseea）.通过吸收光谱、圆二色谱和核磁共振氢谱对配合物进行了表征。用X射线衍射法测定了配合物（+）500 CD-[Co（mseea）（en）2]（ClO_4）_3的晶体结构。红板晶体为正交晶系，空间群P212121，a=12.220（15），B=19.224（7），c=8.977（11）A，Z=4，最终R值为0.087。配位的硒原子采用Λ异构体的（R）构型。的吸收光谱和CD光谱的五个配合物进行了讨论，与相应的钴（III）配合物含有一个协调的硫原子。
Five optically active cobalt(III) complexes of [Co(bidentate-N,Se)(en)2] type were prepared; here bidentate-N,Se denotes 2-aminoethaneselenolato (aes), 2-aminoethaneselenenato (aesee), 2-(methylseleno)ethylamine (mseea), 2-(ethylseleno)ethylamine (eseea), and 2-(benzylseleno)ethylamine (bseea). These complexes were characterized from their absorption, CD and 1H NMR spectra. Of these complexes, the crystal structure of (+)500CD-[Co(mseea)(en)2](ClO4)3 was determined by the X-ray diffraction method. The red plate crystal was orthorhombic, space group P212121, a=12.220(15), b=19.224(7), c=8.977(11) A, Z=4, and the final R value was 0.087. The coordinated selenium atom takes the (R) configuration for the Λ isomer. The absorption and CD spectra of the five complexes are discussed in comparison with those of the corresponding cobalt(III) complexes containing a coordinated sulfur atom.