Synthesis and photoluminescent properties of two novel tripodal compounds containing coumarin moieties.
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.
Yu
Tianzhi
T
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
Zhang
Peng
P
Zhao
Yuling
Y
Zhang
Hui
H
Meng
Jing
J
Fan
Duowang
D
D003374:Coumarins / Q000737:chemistry*; D049408:Luminescent Agents / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D013053:Spectrophotometry
D003374:Coumarins; D049408:Luminescent Agents