Synthesis, spectroscopic, magnetic and EPR results and crystal structure of di-μ-(N-methyl-N-methoxy-2-pyridinamine) bis[(2,2′-bipyridine)copper(II)]hexafluorophosphate

被引：5

作者：

Barquín, M

Garmendia, MJG

Pacheco, S

Pinilla, E

Seco, JM

Torres, MR

机构：

[1] Univ Basque Country, Fac Ciencias Quim, Grp Quim Inorgan, EHU, E-20080 San Sebastian, Spain

[2] Univ Complutense, Fac Ciencias Quim, Lab Difracc RayosX, E-28040 Madrid, Spain

[3] Univ Complutense, Fac Ciencias Quim, Dept Quim Inorgan, E-28040 Madrid, Spain

来源：

POLYHEDRON | 2004年 / 23卷 / 10期

关键词：

copper dimer; magnetic properties; antiferromagnetic dimer; crystal structure;

D O I：

10.1016/j.poly.2004.04.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new binuclear complex [ICu(bipy)}(2){t-Me(OCH2)Npy}(2)](PF6)(2), where bipy=2,2'-bipyridine and Me(OCH2)Npy=N-methyl-N-methoxy-2-pyridinamine, has been synthesized and characterized by chemical analysis, conductance measurements and IR and electronic spectroscopies. The X-ray crystal structure shows a distorted square-planar pyramidal coordination for Cu(II), determinated by two nitrogen atoms of bipy and two methoxo oxygen atoms in the equatorial plane and the pyridinic nitrogen atom of the ligand in the axial position. Magnetic susceptibility measurements (in the 2-290 K range) reveal a slightly antiferromagnetic character (2J = -3.6 cm(-1)). In the Q-band EPR spectrum signals of triplet (D > hv) are observed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1695 / 1700

页数：6

共 16 条

[11] Toward the prediction of magnetic coupling in molecular systems: Hydroxo- and alkoxo-bridged Cu(II) binuclear complexes [J].