Fabrication of infinite two-dimensional sheets of tetragonal metal(II) lattices -: X-ray crystal structures and magnetic properties of [M(CA)(pyz)]n (M2+ = Mn2+ and Co2+; H2CA = chloranilic acid; pyz = pyrazine)

被引:26
|
作者
Kumagai, H
Kawata, S
Kitagawa, S [1 ]
机构
[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
[2] Shizuoka Univ, Dept Chem, Shizuoka 4228529, Japan
[3] Kyoto Univ, Grad Sch Engn, Dept Synthet Chem & Biol Chem, Sakyo Ku, Kyoto 6068501, Japan
关键词
cobalt (II); manganese (II); X-ray crystal structure; magnetic properties; chloranilic acid;
D O I
10.1016/S0020-1693(02)01084-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
New cobalt(II) and manganese(II) co-ordination polymers containing tetragonal lattices [M(CA)(pyz)](n) (M2+ = Mn2+ (1) and Co2+ (2); H(2)CA=chloranilic acid; pyz = pyrazine) have been synthesized and characterized. Both compounds 1 and 2 are isomorphous. Each metal atom for 1 and 2 displays a six-coordinate geometry with the two bis-chelating CA(2-) anions and pyz molecules, providing an infinite square grid sheet. The temperature dependence of magnetic susceptibilities revealed the presence of antiferromagnetic interaction with J=-0.32 cm(-1), zJ' = -0.34 cm(-1), g=2.00 for 1 and J = -1.09 cm(-1), J' = -0.55 cm(-1), g=2.27 for 2, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:387 / 392
页数:6
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