Unexpected proline coordination in the copper chain polymer [Cu(μ-Cl)2(μ-DL-proline-κ2O:O′)]

Kevin Lamberts; Mihaela-Diana ?erb Ulli Englert

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Unexpected proline coordination in the copper chain polymer [Cu(μ-Cl)2(μ-DL-proline-κ2O:O′)]

机译：铜链聚合物中意外的脯氨酸配位[Cu（μ-Cl）2（μ-DL-脯氨酸-κ2O：O'）]

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In catena-poly[copper(II)-di-μ-chlorido-μ-proline-κ2O:O′], [CuCl2(C5H9NO2)]n, two symmetry-independent metal cations adopt distorted octahedral coordination, typical for d9 Jahn–Teller systems. Each chloride bridge is involved in both a short and a very long interaction with a CuII centre. The centrosymmetric crystal structure contains homochiral chains of opposite handedness which extend along the shortest lattice parameter (i.e. a). The O:O′-bridging coordination mode of proline, although a common motif for such complexes in general, is remarkable for CuII; the vast majority of amino acid derivatives of this cation are characterized by N,O-chelation.

机译：在阳离子聚[铜（II）-二-μ-氯代-μ-脯氨酸-κ2O：O']，[CuCl2（C5H9NO2）] n中，两个不对称的金属阳离子采用扭曲的八面体配位，这对于d9 Jahn–柜员系统。每个氯化物桥都与CuII中心发生了短暂和非常长的相互作用。中心对称晶体结构包含沿相反的手性的同手性链，它们沿最短的晶格参数（即a）延伸。脯氨酸的O：O'桥联配位模式虽然通常是此类配合物的常见基序，但对CuII而言却很明显。该阳离子的绝大多数氨基酸衍生物以N，O-螯合为特征。

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《Acta crystallographica. Section C, Structural chemistry.》 |2015年第4期|共5页
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Kevin Lamberts; Mihaela-Diana ?erb Ulli Englert;
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1. Unexpected proline coordination in the copper chain polymer [Cu(μ-Cl)2(μ-DL-proline-κ2O:O′)] [J] . Kevin Lamberts, Mihaela-Diana ?erb Ulli Englert Acta crystallographica. Section C, Structural chemistry. . 2015,第4期

机译：铜链聚合物中意外的脯氨酸配位[Cu（μ-Cl）2（μ-DL-脯氨酸-κ2O：O'）]
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Unexpected proline coordination in the copper chain polymer [Cu(μ-Cl)2(μ-DL-proline-κ2O:O′)]

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