Syntheses, structures, and magnetic properties of dinuclear/1-D copper(II) acetato and formato derivatives with methylpyrazine and dimethylpyrazine

被引:16
作者
Barquin, Montserrat [1 ]
Gonzalez Garmendia, Maria J. [1 ]
Larrinaga, Liher [1 ]
Pinilla, Elena [2 ,3 ]
Seco, Jose M. [1 ]
Torres, Maria R. [2 ]
机构
[1] Univ Basque Country, Fac Ciencias Quim, Grp Quim Inorgan, UPV EHU, San Sebastian 20080, Spain
[2] Univ Complutense, Fac Ciencias Quim, Lab Difracc Rayos 10, E-28040 Madrid, Spain
[3] Univ Complutense, Fac Ciencias Quim, Dept Quim Inorgan, E-28040 Madrid, Spain
关键词
Copper; Methylpyrazine; Dimethylpyrazine; Dimers; Chain of dimers; CRYSTAL-STRUCTURE; SPECTROSCOPIC PROPERTIES; MOLECULAR-STRUCTURE; PYRAZINE; EXCHANGE; COMPLEXES; ADDUCTS; DIMER;
D O I
10.1080/00958972.2010.487559
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In this study, {[Cu2(mu-HCO2)4](mu-Mepyrz)}n (1), [Cu2(mu-HCO2)4(Mepyrz)2] (2), {[Cu2(mu-AcO)4](mu-Mepyrz)}n (3), [Cu2(mu-AcO)4(Mepyrz)2] (4), [Cu2(mu-AcO)4(2,3-Me2pyrz)2] (5), [Cu2(mu-AcO)4(2,6-Me2pyrz)2] (6), and {[Cu2(mu-AcO)4](mu-2,5-Me2pyrz)}n (7) have been synthesized and characterized by chemical analysis and electronic spectroscopy. Compounds 2, 4, 5, and 6, characterized by single-crystal X-ray diffraction, are composed of molecular dimers based on a paddle-wheel motif with two coppers, four syn-syn carboxylates, and two ligands coordinated to copper in the axial positions. In 7, chains of [Cu2(mu-AcO)4] dimers with 2,5-Me2pyrz as bridging ligands are formed. Magnetic properties and electron paramagnetic resonance results of the compounds are also described.
引用
收藏
页码:1652 / 1665
页数:14
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