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FIZIKA A 3 (1994) 3, 193-198
 
MAGNETIC ANISOTROPY OF AZOBENZENE CRYSTALS WITH DIFFERENT
STEREOSTRUCTURES
MOHAMED GAAFAR* AND MOHAMED EL-SHABASY**
* Physics Department, Faculty of Science, Alexandria University,
Alexandria, Egypt
**Physics Department, Faculty of Science, El-Minia University,
El-Minia, Egypt
Received 24 August 1994
Revised manuscript received 15 November 1994
The principal diamagnetic susceptibility of azobenzene C12H10N2
with different stereostructures was measured, and their molecular values were deduced
using the molecular-tensor relations. The measurements give evidence on their
stereostructures and the shape of conjugation in the crystals. The results give acceptible
information concerning the configuration and orientation of the molecules within these
molecular crystals. Effect of the contribution of p-electrons
on the magnetic anisotropy in crystals is also discussed.
UDC 538.955
PACS 75.20.ck, 61.50.Jr
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