| abstract |
2,6-Di-tert-Butyl-4-substituted thiopyrylium salt represented by formula (I), a process for production of said salt and a photoconductive composition containing said salt. <IMAGE> (I) wherein A is <IMAGE> (1) <IMAGE> (2) <IMAGE> (3) or <IMAGE> (4) wherein Z(-) is an anion, X is a hydrogen atom, an aryl group, a substituted aryl group or an alkyl group, and R1 and R2 are the same or different and include alkyl groups. |