title: Synthesis, spectroscopic characteristic of novel fluorescent dyes of pyrazoline compounds.
abstract: Four novel fluorescence dyes of the pyrazoline were synthesized and fully characterized by means of (1)H, (13)C NMR, and HRMS. The optical, electrochemical properties were also investigated. Solvent effect on the fluorescence characteristics of the four compounds indicates that the emission wavelength was red-shifted with the increase of solvent polarity. As we expected, the results indicated that these compounds exhibited high quantum yields. Quantum chemical calculations were used to obtain optimized ground-state geometry, spatial distributions of the HOMO, LUMO levels of the compounds.
authors.affiliation: Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Xuzhou Normal University, Xuzhou 221116, China. haiying11@163.com
authors.forename: Hai-Ying
authors.initials: HY
authors.lastname: Wang
authors.forename: Xiao-Xiao
authors.initials: XX
authors.lastname: Zhang
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Shi
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Xu
authors.forename: Shun-Jun
authors.initials: SJ
authors.lastname: Ji
mesh_terms: D002227:Carbazoles / Q000138:chemical synthesis / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D053644:Naphthalimides / Q000138:chemical synthesis / Q000737:chemistry; D011720:Pyrazoles / Q000138:chemical synthesis / Q000737:chemistry*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry
chemical_list: D002227:Carbazoles; D005456:Fluorescent Dyes; D053644:Naphthalimides; D011720:Pyrazoles