title: Syntheses, characterization and fluorescent properties of two triethylene-glycol dicoumarin-3-carboxylates.
abstract: 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.
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control, Lanzhou Jiaotong University, Ministry of Education, Lanzhou, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Tianzhi
authors.initials: T
authors.lastname: Yu
authors.forename: Yuling
authors.initials: Y
authors.lastname: Zhao
authors.forename: Duowang
authors.initials: D
authors.lastname: Fan
authors.forename: Long
authors.initials: L
authors.lastname: Qian
authors.forename: Changhui
authors.initials: C
authors.lastname: Yang
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
mesh_terms: 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
chemical_list: D002264:Carboxylic Acids; C028914:triethylene glycol; D011092:Polyethylene Glycols; D001728:Dicumarol; D002725:Chloroform