Abstract:Coumarin derivatives are a useful component for developing new materials, such as fluorescence materials and laser dyes; non-linear optical materials and reagents; photorefractive materials; photoresistors; intermediates for drug synthesis; luminescence materials; analytical reagents, etc. 1,2 Coumarin 311, 7-(dimethylamino)-4-methylcoumarin, is also used as laser dyes. It gives laser emission at around 453 nm in ethanol. The crystal structure of coumarin 311 has already been reported. 3 However the fluorence … Show more
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