Sulfur compound-coordinate bonded organic coloring matter, compositions of same, and photorecording media containing same.

摘要

A sulfur compound-coordinate bonded organic coloring matter, having a high resistance to ultraviolet rays and usable for a photorecording medium, comprises a reaction product of a transition metal complex of the formula: wherein n is zero, 1 or 2, A is a cation when n is 1 or 2 but when n is zero, no cation A exists, X1 , X2 , X3 and X4 are -O-, -S-, -SH-, -NH- or -NH2-, R1 , R2 , R3 and R4 are an unsubstituted or substituted phenyl, cyano or alkyl, optionally the groups of the formulae are cyclized to form a substituted or unsubstituted phenylene or naphthylene or divalent heterocyclic ring containing O, S or N, and M is a transition metal atom having a coordinate number of 4 or more, with an organic sulfur compound having a mercapto or disulfide radical, to form at least one coordinate bond between the transition metal atom M and the mercapto or disulfide radical.