Title

Design and Electronic Structure of New Styryl Dye Bases: Steady-State and Time-Resolved Spectroscopic Studies

Authors

Authors

N. V. Bashmakova; Y. O. Shaydyuk; S. M. Levchenko; A. E. Masunov; O. V. Przhonska; J. L. Bricks; O. D. Kachkovsky; Y. L. Slominsky; Y. P. Piryatinski; K. D. Belfield;M. V. Bondar

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Phys. Chem. A

Keywords

PHOTOPHYSICAL PROPERTIES; POLYMETHINE DYES; FLUORESCENCE; ANISOTROPY; MOLECULES; EMISSION; DYNAMICS; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

Abstract

A comprehensive investigation of the electronic structure and fast relaxation processes in the excited states of new styryl base-type derivatives was performed using steady-state, pico-, and femtosecond time-resolved spectroscopic techniques. Linear photophysical parameters of new compounds, including steady-state absorption, fluorescence, and excitation anisotropy spectra, were obtained in a number of organic solvents at room temperature. A detailed analysis of the fluorescence lifetimes and ultrafast relaxation processes in the electronically excited state of the styryl bases revealed an important role of solvate dynamics and donor-acceptor strength of the molecular structures in the formation of their excited state absorption spectra. Experimental data were in good agreement with quantum chemical calculations at the time dependent density functional theory level, combined with a polarizable continuum model.

Journal Title

Journal of Physical Chemistry A

Volume

118

Issue/Number

25

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

4502

Last Page

4509

WOS Identifier

WOS:000338184600015

ISSN

1089-5639

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