Molecular rotors: Synthesis and evaluation as viscosity sensors.

Molecular rotors: Synthesis and evaluation as viscosity sensors.
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DOI:
10.1016/j.tet.2010.01.093
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发表时间:
2010-04-03
期刊:
影响因子:
2.1
通讯作者:
Theodorakis EA
Theodorakis EA
中科院分区:
化学3区
文献类型:
--
作者:
Sutharsan J;Lichlyter D;Wright NE;Dakanali M;Haidekker MA;Theodorakis EA

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已经表明,含有对-N,N,-二烷基氨基亚苄基氰基乙酸酯基序的化合物可以用作荧光非机械粘度传感器。这些化合物被称为分子转子,属于一类荧光探针,已知它们在激发态下形成扭曲的分子内电荷转移复合物。在这项研究中,我们介绍了这些化合物作为粘度传感器的合成和光谱表征。讨论了这些转子的分子结构和电子密度对发射波长、荧光强度和粘度灵敏度的影响。
It has been shown that compounds containing the p-N,N,-dialkylaminobenzylidene cyanoacetate motif can serve as fluorescent non-mechanical viscosity sensors. These compounds, referred to as molecular rotors, belong to a class of fluorescent probes that are known to form twisted intramolecular charge-transfer complexes in the excited state. In this study we present the synthesis and spectroscopic characterization of these compounds as viscosity sensors. The effects of the molecular structure and electronic density of these rotors to the emission wavelength, fluorescence intensity and viscosity sensitivity are discussed.
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