The Phthalocyanines A. B. P. Lever

Phthalocyanines were chosen for these experiments because they are electronic semiconductors and because they are quite stable materials — an important consideration in fabricating any practical gas-detecting device. A considerable body of literature exists describing the physical and chemical properties of the phthalocyanines. A review of the work prior to 1965 is contained in the chapter by A. B. P. Lever in Volume 7 of Advances in Inorganic Chemistry and Radiochemistry (2). Electrical properties of phthalocyanines have been receiving increased attention in recent years. The photoconductivity of metal-free phthalocyanine has been studied in detail (3,4). Electrical properties of lead phthalocyanine have been studied extensively, especially by Japanese workers (5, ,7,8i). They have also studied the alteration of the conductivity of this material upon exposure to oxygen ( ,10.). The effects of a series of adsorbed gases (0, , CO, and NO) on the conductivity of iron phthalo-... 

Lever, A.B.P. (1999). The phthalocyanines-molecules of enduring value, a two dimensional analysis of redox potentials. J. Porphyrins Phthalocyanines, 3, 488-499. 

Leonard et aL (2001) Leonard, M. Khandekar, N. Carr, D.W. Amber Varnish and Orazio Gentileschi s Lot and his daughters The Burlington Magazine CXLIII 1174 (2001) Lever (1965) Lever, A.B.P The Phthalocyanines (1965) Levin et oL (1964) Levin, E.M. Robbins, R. McMurdie, H.F. Reser, M.K. Phase Diagrams for Ceramists American Ceramic Society, Columbus, Ohio (1964)... 

---