Patent ID: 7598360

Claim:
A bisstyryl compound of the formula (I): wherein Z 1 and Z 2 are the same or different and are benzene, naphthalene, or heterocyclic ring containing O, S, or N, R 1 is H, C 1-5 alkyl, hydroxyl, halogen, or alkoxy, 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 C 2-7 alkoxy carbonyl, R 3 , R 4 , R 5 , and R 6 are H, halogen, substituted or unsubstituted alkyl, aralkyl, or heterocyclic ring containing O, S, or N, W is nitrogen with or without Z 1 and Z 2 , Y is C—R 7 R 8 , oxygen, sulfur, selenium, or —NR—, m is 1˜3, n is 1˜18, and X 1 and X 2 are the same or different and are an anion 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, R 7 and R 8 are H or alkyl, and R bonded to nitrogen is C 1-5 alkyl.