Synthesis, characterization, and magnetic study of pyrazine bridged polymeric complexes of copper(II)

被引:27
作者
Das, A [1 ]
Todorov, I [1 ]
Dey, SK [1 ]
Mitra, S [1 ]
机构
[1] Univ Jadavpur, Dept Chem, Kolkata 700032, W Bengal, India
关键词
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.
引用
收藏
页码:2041 / 2046
页数:6
相关论文
共 34 条
[1]   SYNTHESIS, STRUCTURE, AND SPECTROSCOPIC PROPERTIES OF COPPER(II) COMPOUNDS CONTAINING NITROGEN SULFUR DONOR LIGANDS - THE CRYSTAL AND MOLECULAR-STRUCTURE OF AQUA[1,7-BIS(N-METHYLBENZIMIDAZOL-2'-YL)-2,6-DITHIAHEPTANE]COPPER(II) PERCHLORATE [J].
ADDISON, AW ;
RAO, TN ;
REEDIJK, J ;
VANRIJN, J ;
VERSCHOOR, GC .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1984, (07) :1349-1356
[2]   Quantum linear magnetic chains: structure and magnetic behavior of (2-methylpyrazine)copper(II) nitrate [J].
Amaral, S ;
Jensen, WE ;
Lande, CP ;
Turnbull, MM ;
Woodward, FM .
POLYHEDRON, 2001, 20 (11-14) :1317-1322
[3]   ANOMALOUS PARAMAGNETISM OF COPPER ACETATE [J].
BLEANEY, B ;
BOWERS, KD .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1952, 214 (1119) :451-465
[4]   A chemically functionalizable nanoporous material [Cu3(TMA)2(H2O)3]n [J].
Chui, SSY ;
Lo, SMF ;
Charmant, JPH ;
Orpen, AG ;
Williams, ID .
SCIENCE, 1999, 283 (5405) :1148-1150
[5]  
Colacio E, 1999, EUR J INORG CHEM, P441
[6]   A novel class of interpenetrated 3-D network of a dimeric cupric-tetracarboxylate unit [J].
Dalai, S ;
Mukherjee, PS ;
Zangrando, E ;
Lloret, F ;
Chaudhuri, NR .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2002, (06) :822-823
[7]   A quasi-tetrahedral Cu4 cluster and a helical-chain copper(II) complex with single syn-anti carboxylate bridges:: Crystal structure and magnetic properties [J].
Dey, SK ;
Bag, B ;
Malik, KMA ;
El Fallah, MS ;
Ribas, J ;
Mitra, S .
INORGANIC CHEMISTRY, 2003, 42 (13) :4029-4035
[8]   Utility and synthetic uses of Mannich reaction: An efficient route for synthesis of thiadiazino-[1,3,5][3,2-a]benzimidazoles [J].
El-Wareth, A ;
Sarhan, AO ;
Abdel-Hafez, SH ;
El-Sherief, H ;
Aboel-Fadl, T .
SYNTHETIC COMMUNICATIONS, 2006, 36 (08) :987-996
[10]   Polymeric networks of copper(II) using succinate and aromatic N-N donor ligands: synthesis, crystal structure, magnetic behaviour and the effect of weak interactions on their crystal packing [J].
Ghoshal, D ;
Maji, TK ;
Mostafa, G ;
Sain, S ;
Lu, TH ;
Ribas, J ;
Zangrando, E ;
Chaudhuri, NR .
DALTON TRANSACTIONS, 2004, (11) :1687-1695