Copper(II) complexes of N,N′-dimethylethane-1,2-diamine with fluoride and tetrafluoroborate: syntheses, structures, and magnetic properties

被引:2
作者
Hanikova, Jaroslava [1 ]
Kuchar, Juraj [1 ]
Cizmar, Erik [2 ]
Feher, Alexander [2 ]
Cernak, Juraj [1 ]
机构
[1] PJ Safarik Univ Kosice, Dept Inorgan Chem, Inst Chem, Fac Sci, Kosice, Slovakia
[2] PJ Safarik Univ Kosice, Dept Phys Condensed Matters, Inst Phys, Fac Sci, Kosice, Slovakia
关键词
Copper(II); Crystal structure; Hydrogen bond; Magnetic studies; Fluorine; X-RAY STRUCTURES; GRAPH-SET ANALYSIS; CRYSTAL-STRUCTURE; SPECTROSCOPY; PATTERNS; IONS;
D O I
10.1080/00958972.2012.756978
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
[Cu(bmen)2(H2O)2]F2 center dot 4H2O (1) (bmen=N,N-dimethylethane-1,2-diamine) and [Cu(bmen)2(BF4)2] (2) exhibit ionic and molecular crystal structures, respectively. In both 1 and 2, Cu(II) exhibits tetragonally elongated six coordination in the 4+2 form with two chelate bmen in the equatorial plane; axial positions are occupied by weakly bound water in 1 while in 2 in these positions are fluorine from disordered BF4 . Packing in 1 and 2 are governed by hydrogen bonds (HBs). Magnetic studies from 1.8 to 300K reveal that 1 and 2 follow the Curie-Weiss law with parameters theta=-0.88K and g=2.04 for 1 and theta=-0.58K and g=2.13 for 2, suggesting the presence of weak antiferromagnetic interactions.
引用
收藏
页码:316 / 328
页数:13
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