Electrical conductivity studies on some dibenzoylmethane arylhydrazones (DBMAH)

Electrical conductivity of some dibenzoylmethane arylhydrazones (DBMAH) were measured during heating and reheating runs. The observed variation of the conductance of the polycrystalline sample during thermal agitation was found to depend on the ordering and disordering of molecules which in turn cau...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2010-04, Vol.100 (1), p.219-223
Main Authors: Issa, Y. M., Hassib, H., Mohamed, W. S.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Antifungal agents
Azo compounds
Chemistry
Chemistry and Materials Science
Conductance
Distortion
Electric properties
Electrical conductivity
Electrical resistivity
Exact sciences and technology
Heating
Hydrogen
Hydrogen bonding
Inorganic Chemistry
Mathematical analysis
Measurement Science and Instrumentation
Noncondensed benzenic compounds
Organic chemistry
Physical Chemistry
Polymer Sciences
Preparations and properties
Reheating
Resistivity
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Summary:Electrical conductivity of some dibenzoylmethane arylhydrazones (DBMAH) were measured during heating and reheating runs. The observed variation of the conductance of the polycrystalline sample during thermal agitation was found to depend on the ordering and disordering of molecules which in turn cause the lattice dipole to distort. A semiconducting behavior was detected for these systems as it was deduced from their conductance values (1.7 × 10 −6  − 8.25 × 10 −7  ohm −1  cm −1 ). The presence of substituents affects markedly the measured electrical conductivity and calculated activation energy values.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-009-0224-z