Unusual fluorescence enhancement of a novel carbazolyldiacetylene bound to gold nanoparticles.
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.
Li
Cuihong
C
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.
Liu
Xiaofeng
X
Yuan
Mingjian
M
Li
Junbo
J
Guo
Yanbing
Y
Xu
Jialiang
J
Zhu
Mei
M
Lv
Jing
J
Liu
Huibiao
H
Li
Yuliang
Y
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
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