Observation of Long-Range Vicinal Effect in Chiral Cu(II)-Cr(VI) or Cu(II)-W(VI) Bimetallic Coordination Polymers

被引：0
|
作者：
Hayashi, Naoshi [1 ]
Akitsu, Takashiro [1 ]
机构：
[1] Tokyo Univ Sci, Fac Sci, Dept Chem, Shinjuku Ku, Tokyo 1628601, Japan
来源：
POLYMERS | 2011年 / 3卷 / 03期
关键词：
chirality; copper; CD; XRD; XAS;
D O I：
10.3390/polym3031029
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We have prepared some diastereomers of [CuL2][M2O7] (L is 1,2-diaminocyclohexane and its derivatives; M = Cr and W) bimetallic coordination polymers and confirmed their structural similarity and inner electronic states by means of XRD and XAS, respectively. For the first time, we have successfully observed distant vicinal effect of which the chiral source is only chiral organic ligands of [CuL2](2+) moieties (acting as ligand complex), while probe bands for solid state CD spectra are charge transfer (CT) bands of [M2O7](2-) moieties (achiral complex) with the d(0) electronic configuration. The new concept (interpretation) of this observation will be important for supramolecular chirality of coordination polymers built by ligand complexes.
引用
收藏
页码：1029 / 1035
页数：7
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