Fluorescence characteristics of aryl boronic acid derivate (PBA).

Authors :: Patil SS
Muddapur GV
Patil NR
Melavanki RM
Kusanur RA
Source :: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2015 Mar 05; Vol. 138, pp. 85-91. Date of Electronic Publication: 2014 Nov 20.
Publication Year :: 2015
Abstract: The absorption and fluorescence spectra of newly synthesized aryl boronic acid derivative namely Phenyl boronic acid (PBA) have been recorded in various solvents of different polarities. The ground state dipole moment of PBA was obtained from quantum chemical calculations. Solvatochromic correlations were used to estimate the ground state (μg) and excited state (μe) dipole moments. The excited state dipole moments are observed to be greater than the ground state dipole moments. Further, the ground and excited state dipole moments are not parallel but subtend by an angle of 70°. The changes in dipole moment (Δμ) were calculated both from solvatochromic shift method and microscopic solvent polarity parameter (ET(N)), and the values are compared. Solvent effects on the absorption and fluorescence spectra were quantified using Reichardt's and bulk solvent polarity parameters were complemented by the results of the Kamlet-Taft treatment.<br /> (Copyright © 2014 Elsevier B.V. All rights reserved.)

Subjects :: Fluorescence
Models, Molecular
Quantum Theory
Solvents
Spectrometry, Fluorescence
Boronic Acids chemistry

Language :: English
ISSN :: 1873-3557
Volume :: 138
Database :: MEDLINE
Journal :: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Type :: Academic Journal
Accession number :: 25463054
Full Text :: https://doi.org/10.1016/j.saa.2014.11.028