期刊
POLYHEDRON
卷 27, 期 11, 页码 2372-2378出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2008.04.023
关键词
tetranuclear; mu(3)-methanolate; 8-quinolinolate; glycinol coordination; bridge cleavage
资金
- Ministry of Education, Science & Technology (MoST), Republic of Korea [CN2804] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A new Ni-4 distorted cubane complex [Ni-4(mu(3)-OMe)(4)Q(4)(MeOH)(4)] (1) (where Q(-) is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)(2) center dot 4H(2)O in refluxing MeOH via solvent derived mu(3)-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni-4(OMe)(4)] cubane is covered by four Q(-) and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (HgI; NH2(CH2)(2)OH), an amine substituted ethanol, producing monomeric [NiQ(2)(HgI)(2)] center dot 2H(2)O (2 center dot 2H(2)O) instead and is able to cleave 1 to yield 2 center dot 2H(2)O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J(1) = -1.8(1) cm(-1), J(2) = 3.9(1) cm(-1) and g = 2.24. (C) 2008 Elsevier Ltd. All rights reserved.
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