Syntheses, characterization and fluorescent properties of two triethylene-glycol dicoumarin-3-carboxylates.
Two novel triethylene-glycol dicoumarin-3-carboxylates were synthesized and characterized by element analysis, (1)H NMR, FT-IR and UV-vis absorption spectra. The photoluminescent behaviors of triethylene-glycol dibenzo[5,6]coumarin-3-carboxylate doped in PMMA were discussed. These compounds exhibit strong blue emission under ultraviolet light excitation. Compared to coumarin-3-triethylene glycol diester, the absorption and emission spectra of benzo[5,6]coumarin-3-triethylene glycol diester was bathochromically shifted due to the larger conjugation of benzene moiety. These derivatives have potential possible to explore organic electroluminescent materials.
Zhang
Hui
H
Key Laboratory of Opto-Electronic Technology and Intelligent Control, Lanzhou Jiaotong University, Ministry of Education, Lanzhou, China.
Yu
Tianzhi
T
Zhao
Yuling
Y
Fan
Duowang
D
Qian
Long
L
Yang
Changhui
C
Zhang
Kai
K
D002264:Carboxylic Acids / Q000138:chemical synthesis* / Q000737:chemistry*; D002725:Chloroform; D001728:Dicumarol / Q000138:chemical synthesis* / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000138:chemical synthesis* / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
D002264:Carboxylic Acids; C028914:triethylene glycol; D011092:Polyethylene Glycols; D001728:Dicumarol; D002725:Chloroform