This paper describes the preparation and Langmuir-Blodgett (LB) monomolecular film formation of H_2, Cu, Ni, Co, and Zn phthaloeyanine compounds with p-vinyiphenoxy peripheral substituent on each benzo ring at either 2- or 3- position [i.e., tetra (p-vinylphenoxy) substituted isomer mixture]. These phthalocyanine derivatives form stable LB films at the film pressures greater than 10 dynes/cm. The surface pressure-area isotherms indicate that the phthalocyanine units are densely packed with a eofacial orientation. Schottky cells of [Indium-Tin Oxide/LB film/Al] were prepared and their electronic properties were examined. Much better rectifying properties, diode parameter, break-down potential and mechanical strength were notified by the post-polymerization of LB-layers. On exposing the polymerized films to tetrahydrofuran vapor, the absorption maxima of Q-band shift bathochromically by about 100 nm, being sensitive to diode laser light. This paper describes the preparation and Langmuir-Blodgett (LB) monomolecular film formation of H_2, Cu, Ni, Co, and Zn phthaloeyanine compounds with p-vinyiphenoxy peripheral substituents on each benzo ring at either 2- or 3- position [ie tetra (p-vinylphenoxy) substituted isomer mixture]. These phthalocyanine derivatives form stable LB films at the film pressures greater than 10 dynes / cm. The surface pressure-area isotherms indicate that the phthalocyanine units are densely packed with an eofacial orientation. Schottky cells of Much better rectifying properties, diode parameter, break-down potential and mechanical strength were confirmed by the post-polymerization of LB-layers. On Exposing the polymerized films of vapor vapor, the absorption maxima of Q-band shift bathochromically by about 100 nm, being sensitive to diode laser light.