Two-photon photochromism of a diarylethene enhanced by Forster resonance energy transfer from two-photon absorbing fluorenes

被引：30

作者：

Belfield, Kevin D. ^{[1
]}

Bondar, Mykhailo V.

Corredor, Claudia C.

Hernandez, Florencio E.

Przhonska, Olga V.

Yao, Sheng

机构：

[1] Univ Cent Florida, Dept Chem, FPCE, Orlando, FL 32816 USA

[2] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA

[3] Inst Phys, UA-03028 Kiev, Ukraine

[4] Bristol Myers Squibb Pharmaceut Res Inst, New Brunswick, NJ 08901 USA

来源：

CHEMPHYSCHEM | 2006年 / 7卷 / 12期

关键词：

diarylethenes; fluorescence; FRET (fluorescence resonance energy transfer); photochromism; two-photon excitation;

D O I：

10.1002/cphc.200600553

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Resonance energy transfer from two-photon absorbing fluorene derivatives to the photochromic compound 3,4-bis-(2,4,5-trimethyl-thiophen-3-yl)furan-2,5-dione (PC 1) is investigated in hexane under one- and two-photon excitation. The quenching of the steady-state fluorescence of donor molecules in the presence of the diarylethene acceptor is used to study the nature of resonance energy transfer. The Forster distances and critical acceptor concentrations are determined for non-bound donar-acceptor pairs in homogeneous molecular ensembles. Quite significantly, up to a two-fold enhancement in the velocity of a photochromic transformation of 1, in the presence of two-photon absorbing fluorene derivatives, is demonstrated.

引用

页码：2514 / 2519

页数：6

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