| 摘要 |
Electrophotosensitive materials having the structure <IMAGE> I. <IMAGE> II. wherein: a and b represent zero, one or two; L1 through L7, which may be the same or different represent hydrogen, alkyl, aralkyl, aryl or dialkylaminoarylvinyl; or any two of L1, L2, and L3 or any two of L4, L5, L6 and L7 may, together with the atoms to which they are attached, represent the elements needed to complete a carbocyclic ring; R represents alkyl, aryl, nitroaryl or hydrogen; A1 represents aryl or a heterocyclic nucleus including those nuclei defined for A2 below; A2 represents a N-alkyl substituted nucleus of the type used in cyanine dyes.
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