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Studies of the Photophysics of Highly Fluorescent Red Mega 480 Laser Dye in Solutions: Steady State Spectroscopy

Studies of the Photophysics of Highly Fluorescent Red Mega 480 Laser Dye in Solutions: Steady State Spectroscopy

V B Tangod, B M Mastiholi, Prasad Raikar, S G Kulkarni, U S Raikar

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Sep 5;148:105-13.

PMID: 25875032

Abstract:

The absorption and fluorescence spectra of highly fluorescent industrially useful medium sized Red Mega 480 dye have been studied in various solvents at 298 K. The solute photophysical behavior depends strongly on the solute-solvent interactions. In order to understand the effect of inter molecular interactions on spectral behaviors of the dye in different solvents extent of this behavior can be analyzed by linear solvation energy relationships. In addition, ground and excited state dipole moments were evaluated by various methods. It is observed that excited state dipole moment (μe) is larger than the ground state (μg), absorption spectra show a bathochromic shift with increasing polarity indicating that transition involved is π→π(∗) and Onsager cavity radius is determined by atomic increment method.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP540528005	Fluorescent Red Mega 480		540528-00-5	Price

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