Effect of N ancillary ligands on the structure, nuclearity and magnetic behavior of Cu(II)-pyrazolecarboxylate complexes

被引:13
作者
Cheng, Meiling [1 ,2 ]
Sun, Lin [1 ,2 ]
Han, Wei [1 ,2 ]
Wang, Shen [1 ,2 ]
Liu, Qi [1 ,2 ,3 ]
Sun, Xiaoqiang [1 ,2 ]
Xi, Haitao [1 ,2 ]
机构
[1] Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China
[2] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China
[3] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
ELECTRON-PARAMAGNETIC-RESONANCE; PARTICULATE METHANE MONOOXYGENASE; TRINUCLEAR COPPER(II) COMPLEXES; X-RAY-STRUCTURE; CRYSTAL-STRUCTURES; COORDINATION POLYMERS; LUMINESCENT PROPERTIES; METAL-COMPLEXES; 5-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID; II COMPLEX;
D O I
10.1039/c6nj02338j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In the absence/presence of different N ancillary ligands, four copper(II)-pyrazolecarboxylate complexes, [Cu(HMPCA)(2)(lmH)(2)]center dot 2H(2)O (1), (Cu-2(MPCA)(2)(H2O)(4)] (2), [Cu-2(MPCA)(2)(4,4'-bpy)(H2O)(2)](n)center dot 5nH(2)O (3) and [Cu-3(MPCA)(3)(Phen)(3)](2)center dot 2EtOH.15H(2)O (4) (H(2)MPCA = 5-methyl-1H-pyrazole-3-carboxylic acid, lmH = imidazole, 4,4'-bpy = 4,4'-bipyridine and Phen = 1,10-phenanthroline) were obtained. All complexes have been structurally characterized. Compounds 2 and 3 containing the same bis(mu-pyrazolato)dicopper(II) planes range from dinuclear to 1D polymer. Trinuclear complex 4 contains the first reported cyclic-trinuclear copper(II)-pyrazolato structure without any mu(3) ligand core. Magnetic susceptibility data show that complexes 2-4 exhibit antiferromagnetic couplings between the adjacent magnetic centers.
引用
收藏
页码:10504 / 10511
页数:8
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