| Issue |
J. Phys. IV France
Volume 114, April 2004
|
|
|---|---|---|
| Page(s) | 643 - 644 | |
| DOI | https://doi.org/10.1051/jp4:2004114154 | |
J. Phys. IV France 114 (2004) 643
DOI: 10.1051/jp4:2004114154
Structural peculiarities of phase transitions in heterospin systems
G. Romanenko1, 1, S. Fokin1, V. Ikorskii1 and V. Ovcharenko11 International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk 630090, Russia
Abstract
New heterospin complexes of metal
hexafluoroacetylacetonates with pyrazole-substituted nitronyl nitroxides
were synthesized and structurally characterized. For all compounds, detail
X-ray investigations (Smart Apex diffractometer, Bruker AXS) in the
temperature range 100-300 K were performed. It has been shown that the
temperature range of magnetic phase transition coincided with the the
temperature range of density changing. Movements of atoms in the course of
phase transitions have been analized.
Key words. Nitroxides - copper(II) complexes - structure - phase
transition
© EDP Sciences 2004