title: Synthesis, crystal structures and photoluminescence of anthracen- and pyrene-based coumarin derivatives.
abstract: Two new anthracen- and pyrene-based coumarin derivatives, 3-(4-(anthracen-10-yl)phenyl)coumarin (4) and 3-(4-(pyrene-1-yl)phenyl)coumarin (5), were synthesized and characterized by FT-IR, (1)H NMR, element analysis and single crystal X-ray crystallography. The UV-vis absorption and photoluminescence spectra of these coumarin derivatives were investigated. The results show that compound 4 and 5 exhibit blue and blue-green emissions, respectively, under ultraviolet light excitation. Compared with the compound 4, the emission peak of compound 5 was bathochromically shifted by about 80 nm due to the more planar structure and larger π-conjugation.
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Tong
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
authors.forename: Yuling
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China. Electronic address: yutianzhi@hotmail.com.
authors.forename: Tianzhi
authors.initials: T
authors.lastname: Yu
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
authors.forename: Duowang
authors.initials: D
authors.lastname: Fan
keywords: Anthracene; Coumarin derivative; Crystal structure; Photoluminescence; Pyrene; Synthesis