copper(II);
carboxylate;
pyrazine;
magnetic properties;
D O I:
10.1016/j.ica.2006.01.026
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The synthesis, structural characterization and magnetic property of two new coordination polymers [Cu(pyz)(mu-CH3CO2)4](n) (1) and [Cu(pyz)(mu-CCl3CO2)(4)](n) (2) (pyz = pyrazine) are reported. Here, the carboxylato bridged two dinuclear copper(I 1) complexes are linked through pyrazine giving a I-D alternating chain. The magnetic property of the complexes indicates a significant difference originated from the introduction of electron withdrawing substituent on the bridging dicarboxylate. Complex I exhibits strong antiferromagnetic interactions with J = -344.61 cm(-1) whereas 2 exhibits comparatively less strong I, antiferromagnetic coupling with J = -238.53 cm(-1). (c) 2006 Elsevier B.V. All rights reserved.