| Literature DB >> 18515179 |
Smritimoy Pramanik1, Paltu Banerjee, Arindam Sarkar, Attreyee Mukherjee, Kumar K Mahalanabis, Subhash Chandra Bhattacharya.
Abstract
How solvent conditions such as solvent polarity and hydrogen-bonding affect the fluorescence of a newly synthesized 3-pyrazolyl 2-pyrazoline derivative (Pyz) having pharmaceutical activity has been explored. The solvatochromic effect of Pyz is due to a change in dipole moment of the compound in the excited state. The relaxation of S1 state is perturbed in hydrogen-bonding solvents. The fluorescence properties of the systems are strongly dependent on the polarity of the media. The non-radiative relaxation process is facilitated by an increase in the polarity of the media. The photophysical response of Pyz in different solvents has been explained considering solute-solvent interactions.Entities:
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Year: 2008 PMID： 18515179 DOI： 10.1016/j.saa.2008.04.011
Source DB: PubMed Journal: Spectrochim Acta A Mol Biomol Spectrosc ISSN： 1386-1425 Impact factor: 4.098