| 摘要 |
<p>Compounds are described of the formula (I): <CHEM> D+ is a cationic dye moiety. R<1> is a branched chain alkyl group. R<2>, R<3> and R<4> are independently selected from alkyl, aryl, aralkyl, alkaryl, alkenyl, alkynyl, alicyclic, heterocyclic, and allyl groups.</p> |
