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 |
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| Authors: | Samy A El‐Daly Abdullah M Asiri Salman A Khan Khalid A Alamry Mahmoud A Hussein |
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| Institution: | 1. Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;2. Department of Chemistry, Faculty of Science, Tanta University, 31527 Tanta, Egypt;3. The Center of Excellence for Advanced Materials, King Abdul Aziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia;4. Polymer Chemistry Lab, Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt |
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| Abstract: | 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 (λex=337.1 nm). The laser parameters such as gain coefficient (α), emission cross section (δe) and half life energy (E1/2) at maximum laser emission are also determined. |
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| Keywords: | 3‐(4‐dimethylamino‐phenyl)‐1‐(2 5‐dimethyl‐thiophen‐3‐yl)‐propenone laser dyes effect of acidity possibility |
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