Patent ID: 7462711

Claim:
A μ-oxo bridged heterometal phthalocyanine compound represented by the following formula I: wherein M1 represents a metal atom selected from the group consisting of scandium, yttrium, aluminum, gallium and thallium, M2 represents a metal atom selected from the group consisting of titanium, vanadium and molybdenum, R represents each independently hydrogen atom or one or more substituent groups and/or substituent atoms selected from the group consisting of a hydrogen atom, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a tert-butyl group, an isoamyl group, a methoxy group, an ethoxy group, an isopropoxy group, a butoxy group, a phenoxy group, a phenyl group, a tolyl group, a benzyl group, an allyl group, an alkenyl group, a cyano group, a halogen atom of Cl, Br, I and F, a carboxylate group, a sulfonate group, a nitro group and an amino group, (A m− ) represents a counteranion A having a valence of m, n/m represents the number of the counteranion, wherein the counteranion A is selected from the group consisting of hydroxy ion (OH − ), halogen ion, hydrogen sulfate ion (HSO 3 − ) and sulfate ion, n represents an integer selected from 0 or 1 to 3 corresponding to a valence of M2, and m represents 1 or 2.