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Synthesis and magnetic properties of trinuclear copper(II) complexes bridged by dimethylglyoximate groups

โœ Scribed by Si-Wei Zhang; Dai-Zheng Liao; Zong-Hui Jian; Shi-Ping Yan; Geng-Lin Wang

Publisher
Springer
Year
1995
Tongue
English
Weight
287 KB
Volume
20
Category
Article
ISSN
0340-4285

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โœฆ Synopsis

New three Cu~J-Cun-Cu" homotrinuclear complexes have been synthesized, namely -Cu(dmg)2{CuL}z z [L=5-nitro-l,10-phenanthroline (5-NO2-phen), 4,4'dimethyl-2,2'-bipyridiine (DMbpy), tetramethylenediamine (TMDA) and dimethylglyoximate ion (dmg)2-]. The magnetic susceptibilities of complexes (1) (L = 5-NO 2phen) and (2) (L : DMbpy) were measured in the 4.2-300 K range, giving the parameters, J = -335 cm-1 (1) and J =-327.5cm-~ (2). The results demonstrate a very strong antiferromagnetic exchange interaction between the adjacent copper(lI) ions.

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