Article ID Journal Published Year Pages File Type
1485580 Journal of Non-Crystalline Solids 2007 6 Pages PDF
Abstract

Sodium phthalocyanine (Na2Pc), potassium phthalocyanine (K2Pc) and hydrogen phthalocyanine (H2Pc) are synthesized in pure state. These complexes are characterized using physico-chemical methods like electronic, IR spectral, magnetic susceptibility measurements, thermogravimetric analysis and X-ray powder diffraction studies. Kinetic and thermodynamic parameters associated with the thermal decomposition were calculated using thermogravimetric analytical data. X-ray diffraction studies revealed that these complexes are having monoclinic crystal lattice structure. Electrical conductivity studies are carried out using two-probe technique in the temperature range 298–473 K for each complex. Sodium phthalocyanine showed semiconducting behavior, whereas potassium phthalocyanine showed first metallic behavior in the temperature range 300–378 K and then semiconducting property in the temperature range 383–473 K. But hydrogen phthalocyanine showed semiconducting behavior in the temperature range 300–390 K and metallic conduction behavior in the temperature range 395–473 K.

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Physical Sciences and Engineering Materials Science Ceramics and Composites
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