title: Synthesis and photoluminescent properties of two novel tripodal compounds containing coumarin moieties.
abstract: Two novel tripodal compounds, tris[2-(7-diethylamino-coumarin-3-carboxamide)ethyl]amine (Tren-C1) and tris[2-(benzo[5,6]coumarin-3-carboxamide)ethyl]amine (Tren-C2), were synthesized and characterized. The UV-vis and fluorescence properties of Tren-C1 and Tren-C2 in solutions were investigated. These two compounds exhibited strong blue emission under ultraviolet light excitation. The maximal fluorescence emission occurred at about the level of 10(-5) mol/L. The chromophore units in the tripodal compounds shown a little interaction in the ground state, while the interactions in the excited state was notable and which leads to a broad and bathochromic shift of the emission bands.
authors.affiliation: Key Laboratory of Opto-Electronic Technology and Intelligent Control (Lanzhou Jiaotong University), Ministry of Education, 88 West Anning Road, Lanzhou 730070, China. ytz823@hotmail.com
authors.forename: Tianzhi
authors.initials: T
authors.lastname: Yu
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Yuling
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Meng
authors.forename: Duowang
authors.initials: D
authors.lastname: Fan
mesh_terms: D003374:Coumarins / Q000737:chemistry*; D049408:Luminescent Agents / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D013053:Spectrophotometry
chemical_list: D003374:Coumarins; D049408:Luminescent Agents