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Effect of Medium Acidity and Photostability of 3‐(4‐Dimethylamino‐phenyl)‐1‐(2,5‐dimethyl‐thiophen‐3‐yl)‐propenone (DDTP): A New Green Emitting Laser Dye
Author(s) -
ElDaly Samy A.,
Asiri Abdullah M.,
Khan Salman A.,
Alamry Khalid A.,
Hussein Mahmoud A.
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201100028
Subject(s) - chemistry , chloromethane , chloroform , chalcone , photochemistry , laser , dimethylformamide , nitrogen , dye laser , carbon tetrachloride , organic chemistry , catalysis , physics , solvent , optics
On the line of a previous work on the spectral properties of some of heteroaryl chalcone, the effect of medium acidity and photoreactivity of 3‐(4‐dimethylamino‐phenyl)‐1‐(2,5‐dimethyl‐thiophen‐3‐yl)‐propenone (DDTP) has been investigated in dimethylformamide and in chloromethane solvents such as methylenechloride, chloroform and carbon tetrachloride. The dye solution ( ca . 5×10 −4 mol·L −1 in DMF) gives a good laser emission in the range 470–560 nm with emission maximum at 515 nm upon pumping by nitrogen laser ( λ ex =337.1 nm). The laser parameters such as gain coefficient ( α ), emission cross section ( δ e ) and half life energy ( E 1/2 ) at maximum laser emission are also determined.