Patent ID: 7799927

Claim:
An indolestyryl compound of formula (I): wherein Z 1 is benzene or naphthalene, R 2 is H, halogen, C 1-5 alkyl, nitro, ester, carboxyl, sulfo, sulfonamide, sulfuric ester, amide, C 1-3 alkoxy, amino, alkylamino, cyano, C 1-6 alkylsulfonyl, or a C 2-7 alkoxy carbonyl, R 3 , R 4 , R 5 , and R 6 are each independently selected from the group consisting of H, alkyl, aralkyl, and a heterocyclic ring containing O, S, or N, R 7 and R 8 are each independently selected from the group consisting of H and an alkyl, R 10 is H, alkyl, halogen, nitro, hydroxyl, amino, ester, or a substituted or non-substituted sulfonyl, W is carbon or nitrogen, Y is carbon, oxygen, sulfur, selenium, —NR, or —C(CH 3 ) 2 , m is 1-3, and X 1 is an anionic group or an anionic organometallic complex, wherein R 3 and R 4 are joined to a nitrogen atom or R 5 and R 6 are joined together to form a ring, and R bonded to nitrogen is C 1-5 alkyl.