Jing Fen
2014
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
A novel π conjugate structure compound,cis-6-phenyl-4'-{ 4-[4-( 1H-carbazol) styryl]phenyl}-2,2'-bipyridine( 3),was synthesized by solvent free Wittig reaction of 2,2'-bipyridine phosphine salt with 4-carbazole benzaldehyde. The structure was characterized by IR,1H NMR,13 C NMR,ESI-MS,elemental analysis and X-ray diffraction. 3 belongs to triclinic system,space group Pī with a = 9. 533( 5) ,b = 12. 352( 5) ,c = 13. 446 ,α = 91. 483( 5) °,β = 14. 221( 5) °,γ = 9. 483°,V = 1 534( 1) 3,Z = 2,Dc = 1. 246 g·cm- 3,R1= 0. 0673,ωR2= 0. 179 5. The optical properties of 3 were investigated by UV-Vis and SPEF. The results showed that λmaxof 3 were289 nm and 345 nm. λemof 3 in benzene,dichloromethane,ethanol and DMF were 418 nm,449 nm,456 nm and 466 nm,respectively.