| 摘要 |
A cyanine dye of formula (II)whereinX<1 >is C(R<5>, R<6>), NR<7>, O, S or Se,X<2 >is O, S, Se or NR<13>,R<2 >with R<3>, or R<3 >with R<4>, are the remaining members for the completion of a condensed furano ring system, and the other R<2 >or R<4 >radical, is H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio,R<10 >to R<12>, are H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, or R<10 >with R<11>, or R<11 >with R<12>, are the remaining members for the completion of a ring system,R<5 >to R<7 >and R<13 >are alkyl, alkylene-SO3Z<1 >or alkylene-CO2Z<1>,R<8 >and R<9 >are alkyl, alkylene-SO3Z<1>, alkylene-CO2Z<1 >or alkylene-Y<2>-N(Z<1>)-Y<3>-alkyl,Z<1 >is H or a negative charge,Y<2 >and Y<3 >are -S(=O)2- or -C(=O)-,M<1 >is a counterion,L<1>, L<2 >and L<3 >are a methine group andn is 0, 1, 2 or 3.
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