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Molecular rotors: Synthesis and evaluation as viscosity sensors.

ABSTRACT: 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.

SUBMITTER: Sutharsan J

PROVIDER: S-EPMC2915462 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

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Molecular rotors: Synthesis and evaluation as viscosity sensors.

Sutharsan Jeyanthy J Lichlyter Darcy D Wright Nathan E NE Dakanali Marianna M Haidekker Mark A MA Theodorakis Emmanuel A EA

Tetrahedron 20100401 14

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 e ...[more]

PMID: 20694175

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