Copper(II) Halide Salts with 1-(4′-Pyridyl)-Pyridinediium

被引：5

作者：

Monroe, Jeffrey C. ^{[1
]}

Landee, Christopher P. ^{[2
]}

Rademeyer, Melanie ^{[3
]}

Turnbull, Mark M. ^{[1
]}

机构：

[1] Clark Univ, Carlson Sch Chem & Biochem, 950 Main St, Worcester, MA 01610 USA

[2] Clark Univ, Dept Phys, 950 Main St, Worcester, MA 01610 USA

[3] Univ Pretoria, Dept Chem, Private Bag X20, ZA-0028 Hatfield, South Africa

来源：

INORGANICS | 2020年 / 8卷 / 03期

关键词：

Cu(II); magnetism; EPR; pyridine-based compound; CRYSTAL-STRUCTURES; MAGNETIC-PROPERTIES; HYDROGEN-BOND; COMPLEXES; EXCHANGE; MONOHYDRATE; BEHAVIOR;

D O I：

10.3390/inorganics8030018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The compounds [1,4 '-bipyridine]-1,1 '-diium [CuCl4] (1) and [1,4 '-bipyridine]-1,1 '-diium [CuBr4] (2) were prepared and their crystal structures and magnetic properties are reported. The compounds are isomorphous and crystallize in the monoclinic space group C2/c. The cation crystallizes in a two-fold disordered fashion with the terminal nitrogen and carbon atoms exhibiting 50% occupancies. This results in a crystal packing arrangement with significant hydrogen bonding that is very similar to that observed in the corresponding 4,4 '-bipyridinediium complexes. Temperature dependent magnetic susceptibility measurements and room temperature EPR spectroscopy indicate the presence of very weak antiferromagnetic exchange. The data were fit to the Curie-Weiss law and yielded Weiss constants of -0.26(5) K (1) and -1.0(1) K (2).

引用

页数：11

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