Estimation of Ground and Excited State Dipole Moments of aryl Boronic acid Derivative by Solvatochromic Shift Method

In the present work, the absorption and fluorescence spectra of newly synthesized aryl boronic acid derivative namely 2-Methylphenyl boronic acid (2MPBA) have been recorded in various solvents of different polarities. The ground state dipole moment of 2MPBA was obtained from quantum chemical calcula...

Full description

Saved in:
Bibliographic Details
Published in:Journal of fluorescence 2014-11, Vol.24 (6), p.1651-1659
Main Authors: Muddapur, G. V., Patil, N. R., Patil, S. S., Melavanki, R. M., Kusanur, R. A.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Derivatives
Dipole moment
Excitation
Ground state
Mathematical analysis
Original Paper
Polarity
Solvents
Spectra
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present work, the absorption and fluorescence spectra of newly synthesized aryl boronic acid derivative namely 2-Methylphenyl boronic acid (2MPBA) have been recorded in various solvents of different polarities. The ground state dipole moment of 2MPBA was obtained from quantum chemical calculations. Solvatochromic correlations were used to estimate the ground state (μ g ) and excited state (μ e ) dipole moments. The excited state dipole moments are observed to be greater than the ground state dipole moment and ground and excited state dipole moments are not parallel but subtend by an angle of 88 0 . Further, the changes in dipole moment ( Δ μ) were calculated both from solvatochromic shift method and microscopic solvent polarity parameter ( E T N ), and the value are compared. The spectral variations were analyzed by Kamlet-Taft parameters.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-014-1452-6