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Crystal structure of the complex of dibenzo-30-crown-10 with dysprosium isothiocyanate
Authors:Yan Shiping  Jiang Zonghui  Liao Diazheng  Wang Genglin  Wang Ruji  Wang Honggen  Yao Xinkan
Institution:(1) Department of Chemistry, Nankai University, Tianjin, China;(2) Central Laboratory, Nankai University, Tianjin, China
Abstract:Crystalline Dy(NCS)3(dibenzo-30-crown-10)(H2O)2]·H2O·MeCN can be obtained by slowly evaporating a reaction mixture of Dy(NCS)3·nH2O with dibenzo-30-crown-10 in a solution of acetonitrile. The material crystallizes in the monoclinic space groupP21/n, the cell parameters area=11.450(5),b=23.284(4),c=18.424(6)Å, beta=106.28(4)°,V=4715Å3,M=968.47,D x=1.36 g cm–1, mgr=17.80 cm–1,F(000)=1972,Z=4.2740 independently observed Ige3sgrI] reflections were used in the final least-squares refinement leading to an agreement index ofR=0.085. The Dy(III) ion coordination geometry approximates a square antiprism, involving two water oxygens and three dibenzo-30-crown-10 oxygen atoms and three isthiocyanate nitrogens. Hydrogen bonds are formed between the two water molecules and four uncoordinated crown ether oxygen atoms. Supplementary Data relevant to this paper have been deposited with the British Library as Supplementary Publication No. SUP 82148 (22 pp.)
Keywords:Dibenzo-30-crown-10  crystal structure  complexation  dysprosium isothiocyanate
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