Substituted phthalocyanine

Claim 1

A phthalocyanine compound of the formula: (R--X--).sub.m Pc(--Y--R.sup.1 --Z--).sub.n (--SO.sub.3 M).sub.p I wherein Pc is a phthalocyanine nucleus (Pc); each R independently is a monovalent aromatic radical linked to a peripheral carbon atom of the Pc nucleus through X selected from phenyl, naphthyl, thienyl, furyl, pyrryl, thiazolyl, isothiazolyl, quinolyl, indolyl, pyridyl, benzoimidazolyl and benzothiazolyl each of which is unsubstituted or substituted by up to 3 substituents selected from C 1-20 -alkyl, C 1-20 -alkoxy, S-C 1-20 -alkyl, halogen, aryl, S-aryl, nitro, cyano, di-N-alkylamino, N-alkyl-N-arylamino, di-N-arylamino, COOH, COT 1 , CONT 1 T 2 , SO 2 T 1 and SO 2 NT 1 T 2 in which T 1 and T 2 are selected from H, alkyl, aryl and aralkyl; X selected from S, Se and Te; m is 4 to 16; each R 1 independently is a divalent aromatic radical linked to two adjacent peripheral carbon atoms of the Pc nucleus through Y and Z selected from phenylene, naphthylene, substituted phenylene and substituted naphthylene in which the substituents are selected from C 1-20 -alkyl, C 1-20 -alkoxy, S-C 1-20 -alkyl, halogen, aryl, S-aryl, nitro, cyano, di-N-alkylamino, N-alkyl-N-arylamino, di-N-arylamino, COOH, COT 1 , CONT 1 T 2 , SO 2 T 1 and SO 2 NT 1 T 2 in which T 1 and T 2 are selected from H, alkyl, aryl and aralkyl; Y is selected from S, NT, Se and Te; Z is selected from S, Se, Te, NT and O; T is selected from H, alkyl and aryl; n is 0 to 7; M is selected from H; a metal; ammonium; substituted ammonium of the formula NQ 4 in which at least one Q is a C 6-20 -fatty aliphatic group or two Qs together with the nitrogen atom, form a heteroalicyclic or heteroaromatic group selected from pyridino, piperidino and morpholino and the other two or three Qs are each independently selected from H, C 1-4 -alkyl, phenyl and benzyl; and diarylguanidinium of the formula: T 3 --NH--C(NHT 4 )--NH--T 3 in which each T 3 is phenyl or C 1-4 -alkylphenyl and T 4 is H or C 1-4 -alkyl; and p is from 1 to 16.