| 摘要 |
This invention comprises an imaging element comprising an imaging layer having associated therewith a compound of Structure I:whereinPUG is a photographically useful group;LINK 1 and LINK 2 are linking groups;TIME is a timing group;T represents t independently selected substituted or unsubstituted alkyl or aryl groups, t is 0, 1, or 2 and if t is 2, the T groups can form a ring;HET is a heterocyclic group which optionally can form a ring with a T group;R12 is hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or R12 can form a ring with a T group or with HET;1 is 0 or 1;m is 0, 1, or 2; andn is 0 or 1.
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