Photophysics of a Fluorescent Probe of the Laurdan Molecule in Homogeneous and Binary Solvents

The spectral and luminescent properties of the laurdan molecule (6-dodecanol 2-dimethylamino-naphthalene) are investigated by experimental and theoretical methods of time-dependent density functional theory (TDDFT). The fluorescence spectra of laurdan in homogeneous and binary solvents are analyzed...

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Bibliographic Details
Published in:Russian physics journal 2016-09, Vol.59 (5), p.672-678
Main Authors: Titova, T. Yu, Morozova, Yu. P., Korolev, B. V.
Format: Article
Language:English
Subjects:
Analysis
Condensed Matter Physics
Cyclohexane
Density functional theory
Dipole interactions
Dodecanol
Fluorescence
Fluorescent indicators
Hadrons
Heavy Ions
Hexanes
Hydrogen
Hydrogen bonds
Investigations
Lasers
Mathematical and Computational Physics
Molecular structure
Naphthalene
Nuclear Physics
Optical Devices
Optical properties
Optics
Optics and Spectroscopy
Photonics
Physics
Physics and Astronomy
Solvents
Theoretical
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Summary:The spectral and luminescent properties of the laurdan molecule (6-dodecanol 2-dimethylamino-naphthalene) are investigated by experimental and theoretical methods of time-dependent density functional theory (TDDFT). The fluorescence spectra of laurdan in homogeneous and binary solvents are analyzed using derivative spectroscopy method. It is shown that the fluorescence band (in hexane, cyclohexane, and triton X-100) is complex: two structures having energy difference 1000–1500 cm –1 are manifested for the molecule. The calculated data show the non-rigidity of its structure. The effect of proton-donor solvents is considered with allowance for not only dipole-dipole interactions, but also formation of the hydrogen bond.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-016-0820-x