期刊
POLYHEDRON
卷 28, 期 11, 页码 2284-2286出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2009.04.035
关键词
Yttrium clusters; Self-assembly; Functionalised beta-diketones; Oxo-hydroxo bridges; Synthesis and structural elucidation
资金
- Department of Science and Technology, New Delhi, India
The reaction of YCl3 center dot 6H(2)O with ortho-hydroxydibenzoylmethane (HO-DBMH) in a 1:2 ratio, in methanol and in the presence of excess triethylamine as a base yielded a yellow precipitate which on crystallization from toluene or benzene/hexane afforded pale yellow block-like crystals. Single crystal X-ray diffraction of I revealed the formation of an interesting hexanuclear yttrium oxo-hydroxo cluster [Y-2(O-DBM)(6)(HO-DBM)(4)(mu(3)-OH)(2)(MeOH)(4)]; the core resembles a butterfly framework flanked by a lanthanide atom on each side. Ten phenolic beta-diketone ligands are present in the Cluster, which bridge the metal centers in both chelating and chelating-bridging fashions. (C) 2009 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据