756. The magnetic susceptibility and crystal structure of nitritobis(ethylenediamine)nickel perchlorate

Author(s):  
F. J. Llewellyn ◽  
J. M. Waters
1998 ◽  
Vol 271-273 ◽  
pp. 452-455 ◽  
Author(s):  
Takeo Fujino ◽  
Nobuaki Sato ◽  
Kohta Yamada ◽  
Hidetoshi Masuda ◽  
Makoto Wakeshima

2002 ◽  
Vol 57 (10) ◽  
pp. 1129-1132 ◽  
Author(s):  
A. Elmali ◽  
Y. Elerman ◽  
I. Svoboda

The mixed-ligand dinuclear complex (2,2'-dipyridyl)-(2-acetylphenolato)copper(II) perchlorate was synthesized and its crystal structures determined. The structure consists of a dimeric unit involving a planar Cu2O2 group. The coordination sphere of the Cu atom can be described as an alongated octahedron where the basal plane is formed by the two N atoms of the 2,2'-dipyridyl molecule and the two O atoms of the acetophenon anion. Two apical Cu - O contacts complete the 4+2 coordination of the Cu atoms. They correspond to one of the O atoms of the perchlorate anion and to the O atom of the second unit. Magnetic susceptibility data obey the Curie-Weiss law with θ = -8.1(2) K. The decreasing of the effective magnetic moment from 1.94(8) μB at 300 K to 1.86(8) μB at 70 K and the negative Weiss constant indicate weak antiferromagnetic interactions between the two copper atoms in the dimeric units.


1993 ◽  
Vol 54 (6) ◽  
pp. 723-731 ◽  
Author(s):  
D. Kaczorowski ◽  
R. Pöttgen ◽  
Z. Gajek ◽  
A. Zygmunt ◽  
W. Jeitschko

Sign in / Sign up

Export Citation Format

Share Document