| 摘要 |
This invention relates to an imaging element comprising a dye represented by Formulae II and IIA below:wherein;R1 represents a hydrogen, an aryl group containing 6 to 14 carbon atoms, or an alkyl group containing 1 to 12 carbon atoms;R2 and R3 together form an aromatic carbocyclic or heterocyclic ring system containing 6 to 14 atoms;X represents a sulfoxide (S=O), sulfone (SO2), carbonyl (C=O) or dicyanovinyl (C(CN)2) group, and Y represents a sulfoxide (S=O), sulfone (SO2), carbonyl (C=O) or dicyanovinyl (C(CN)2) group, with the proviso that X and Y cannot both be carbonyl;L1, L2, and L3 represent methine groups, wherein the methine groups may combine to form a 5- or 6-membered ring when m is equal to or >1;m is 0, 1, 2, or 3;W is an aryl group; andD is a moiety in conjugation with the X and Y groups. |
