Non-linear magnetic behavior of a tetranuclear copper(II) cluster

Authors
Boca, R Falk, K Haase, W
Citation
R. Boca et al., Non-linear magnetic behavior of a tetranuclear copper(II) cluster, MOL CRYST A, 334, 1999, pp. 745-754
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X → ACNP
Volume
334
Year of publication
1999
Part
2
Pages
745 - 754
Database
ISI
SICI code
1058-725X(1999)334:<745:NMBOAT>2.0.ZU;2-P
Abstract
A tetranuclear copper(II) cluster, namely [Cu4OCl6(mor)(4)], mor - morpholi ne, has been investigated by the magnetization measurements at the temperat ure as low as 1.74 and 2.73 K, respectively. A numerical derivative yielded the differential magnetic susceptibility. The low-temperature magnetizatio n data were fitted to a two dimensional function M=f(B,T)and the following set of magnetic parameters has been obtained: g = 2.351, J(a)/k = - 6.33 K and J(b)/k= - 0.76 K. These parameters determine the spacing of energy leve ls in a tetranuclear cluster of the C-3 nu symmetry.