FRET studies on a series of BODIPY-dye-labeled switchable resorcin[4]arene cavitands.
FRET studies on a series of BODIPY-dye-labeled switchable resorcin[4]arene cavitands.
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对一系列 BODIPY 染料标记的可转换间苯二酚[4]芳烃空配体的 FRET 研究。
DOI：
10.1002/chem.201001625
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
F. Diederich
中科院分区：
文献类型：
--
作者：
Igor Pochorovski;B. Breiten;W. Schweizer;F. Diederich
合成了一系列硼二吡咯甲烷（BODIPY）染料标记的间苯二酚[4]芳烃空穴配合物1-4，染料与大环之间具有不同长度的低聚（亚苯基-亚乙炔基）间隔基.通过变温NMR和荧光光谱研究了它们在本体溶液中从花瓶构象到风筝构象的转变行为。VT-NMR和VT荧光共振能量转移（FRET）实验表明，空穴1-4在低温下经历了花瓶到风筝的转换。通过荧光光谱观察到酸触发的风筝构象的切换。FRET数据的定量评估导致确定BODIPY-染料FRET对的Förster半径R（0）=37 μ m，花瓶构象中的平均空腔开放角α=16°。
A series of borondipyrromethane (BODIPY)-dye-labeled resorcin[4]arene cavitands 1-4 with different lengths of oligo(phenylene-ethynylene) spacers between the dyes and the macrocyclic rim has been synthesized. Their switching behavior from the "vase" to "kite" conformations in bulk solution was examined by both variable-temperature (VT) NMR and fluorescence spectroscopy. Both VT-NMR and VT fluorescence resonance energy transfer (FRET) experiments showed that cavitands 1-4 undergo vase-to-kite switching at low temperatures. Acid-triggered switching to the kite conformation was observed by fluorescence spectroscopy. Quantitative evaluation of the FRET data led to the determination of the Förster radius R(0)=37 Å for the BODIPY-dye FRET pair and an average cavitand opening angle α=16° in the vase conformation.
影响因子：
15
作者：
Barrett, Elizabeth S.;Dale, Trevor J.;Rebek, Julius, Jr.
通讯作者：
Rebek, Julius, Jr.
影响因子：
3.6
作者：
Chen, J;Burghart, A;Burgess, K
通讯作者：
Burgess, K