title: Unusual fluorescence enhancement of a novel carbazolyldiacetylene bound to gold nanoparticles.
abstract: A novel carbazolyldiacetylene derivative of 5-[1,2]dithiolan-3-ylpentanoic acid 1,6-bis((N-carbazol-3-yl)methyl)-2,4-hexadiyne ester (DCHD-HS) was synthesized. DCHD-HS showed unusual fluorescence enhancement when it was bound to gold nanoparticles. The studies also showed that varied solvents and ratios of ligand/gold particles that served as the driving forces to control aggregation resulted in emission enhancement. A rational explanation for this phenomenon was discussed and elucidated.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, PR China.
authors.forename: Cuihong
authors.initials: C
authors.lastname: Li
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Liu
authors.forename: Mingjian
authors.initials: M
authors.lastname: Yuan
authors.forename: Junbo
authors.initials: J
authors.lastname: Li
authors.forename: Yanbing
authors.initials: Y
authors.lastname: Guo
authors.forename: Jialiang
authors.initials: J
authors.lastname: Xu
authors.forename: Mei
authors.initials: M
authors.lastname: Zhu
authors.forename: Jing
authors.initials: J
authors.lastname: Lv
authors.forename: Huibiao
authors.initials: H
authors.lastname: Liu
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Li
mesh_terms: D002227:Carbazoles / Q000737:chemistry*; D004952:Esters / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D013050:Spectrometry, Fluorescence; D008063:Thioctic Acid / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: C522237:1,6-bis((N-carbazol-3-yl)methyl)-2,4-hexadiyne 5-(1,2)dithiolan-3-ylpentanoate; D002227:Carbazoles; D004952:Esters; D008063:Thioctic Acid; D006046:Gold