Two coordination polymers containing the dicyanamide ligand: Synthesis, crystal structures, and HFEPR studies

被引：1
|
作者：
Escobar, Livia B. L. [1 ,2 ]
Correa, Charlane C. [1 ]
Guedes, Guilherme P. [3 ]
Vaz, Maria G. F. [2 ]
Greer, Samuel M. [4 ,5 ]
Hill, Stephen [4 ,6 ]
Diniz, Renata [1 ]
Machado, Flavia C. [1 ]
机构：
[1] Univ Fed Juiz de Fora, Dept Quim, Campus Univ S-N, BR-36036900 Juiz De Fora, MG, Brazil
[2] Univ Fed Fluminense, Inst Quim, BR-24020150 Niteroi, RJ, Brazil
[3] Univ Fed Rural Rio de Janeiro, Inst Ciencias Exatas, Dept Quim, BR-23 89000 Seropedica, RJ, Brazil
[4] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[5] Florida State Univ, Dept Chem, Tallahassee, FL 32306 USA
[6] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
来源：
INORGANICA CHIMICA ACTA | 2016年 / 451卷
基金：
美国国家科学基金会;
关键词：
Coordination polymers; Crystal structure; Magnetic properties; HIGH-FIELD EPR; MAGNETIC-PROPERTIES; COMPLEXES; ANION; MULTIFREQUENCY; FLUORESCENCE; COBALT(II); FREQUENCY; NETWORKS; DCA;
D O I：
10.1016/j.ica.2016.07.005
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two new compounds [Ni(dca)2(dmdpy)] (1) and [Zn(dca)2(dmdpy)] (2), (dca = dicyanamide and dmdpy = 5,5'-dimethyl-2,2'-dipyridine) were synthesized and characterized by single crystal X-ray diffraction, FTIR and thermal analysis. In both compounds, the dmdpy ligand adopts a bidentate chelating coordination mode while dca anions act in a mu(1,5) bridging fashion. In 1, the Ni-II centers lie on a distorted octahedral geometry, whereas in 2 the Zn-II geometry is distorted square pyramidal. In compounds 1 and 2, dca ligands connect the metal sites giving rise to 2D and 1D coordination polymers, respectively. The magnetic properties of 1 were studied by magnetic susceptibility and high field/frequency electron paramagnetic resonance (HFEPR) measurements. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：59 / 64
页数：6
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