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- 二 - μ - 氯代 - 双 - [双 -(2,2'- 联吡啶) - 镉] 双 -(1,1,3,3 - 四氰基 - 2 - 乙氧基丙烯酸盐)0.81水合物的晶体结构

Crystal structure of -di-μ-chlorido-bis-[bis-(2,2'-bi-pyridine)-cadmium] bis-(1,1,3,3-tetra-cyano-2-ethoxy-propenide) 0.81-hydrate.

作者信息

Setifi Fatima, Morgenstern Bernd, Hegetschweiler Kaspar, Setifi Zouaoui, Touzani Rachid, Glidewell Christopher

机构信息

Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.

Fachrichtung Chemie, Universität des Saarlandes, Postfach 151150, D-66041 Saarbrücken, Germany.

出版信息

Acta Crystallogr E Crystallogr Commun. 2017 Jan 1;73(Pt 1):48-52. doi: 10.1107/S205698901601971X.

DOI:10.1107/S205698901601971X
PMID:28083134
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5209770/
Abstract

The hydrated title salt, CdCl(CHN)·0.81HO, was obtained from the hydro-thermal reaction between 2,2'-bi-pyridine, cadmium(II) chloride and potassium 1,1,3,3-tetra-cyano-2-eth-oxy-propenide. The binuclear cation lies across a centre of inversion in the space group 2/, with the other components in general positions. The cation has approximate, but non-crystallographic 2/ symmetry and each of the Cd atoms is a stereogenic centre, one having the Δ configuration and the other the Λ configuration. In the anion, one of the C(CN) units is disordered over two sets of atomic sites having occupancies 0.75 (2) and 0.25 (2). The cations are linked by two independent C-H⋯Cl hydrogen bonds to form a sheet of (14) and (24) rings.

摘要

水合标题盐CdCl(CHN)·0.81HO是通过2,2'-联吡啶、氯化镉(II)和1,1,3,3-四氰基-2-乙氧基丙烯酸钾之间的水热反应得到的。双核阳离子位于空间群2/的对称中心上,其他组分处于一般位置。该阳离子具有近似但非晶体学的2/对称性,并且每个镉原子都是一个手性中心,一个具有Δ构型,另一个具有Λ构型。在阴离子中,一个C(CN)单元在两组原子位置上无序,占有率分别为0.75(2)和0.25(2)。阳离子通过两个独立的C-H⋯Cl氢键相连,形成由(14)和(24)环组成的片层。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/add4273a5485/e-73-00048-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/c4b5c83a5234/e-73-00048-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/95f26e9fd739/e-73-00048-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/add4273a5485/e-73-00048-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/c4b5c83a5234/e-73-00048-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/95f26e9fd739/e-73-00048-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ebcd/5209770/add4273a5485/e-73-00048-fig3.jpg

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