Light harvesting and efficient energy transfer in dendritic systems: new strategy for functionalized near-infrared BF2-azadipyrromethenes.
A series of dendritic systems, which are capable of funneling energy from the periphery to the core, have been synthesized. The photophysical properties of the dendrimers, generations 0-2, have been determined. The light-harvesting ability of these compounds increases with increasing generation arising from the increase in molar extinction coefficient. Selective excitation of the donor leads to an efficient energy transfer (>90 %) to the acceptor. The approach provides a facile synthesis for modification of near-infrared BF2-Azadipyrromethene.
Yuan
Mingjian
M
Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.
Yin
Xiaodong
X
Zheng
Haiyan
H
Ouyang
Canbin
C
Zuo
Zicheng
Z
Liu
Huibiao
H
Li
Yuliang
Y