Laser-Induced Luminescence upon IR Multiphoton Excitation of Diethylsilane

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The general features of collisionless laser-induced luminescence upon the IR multiphoton dissociation of diethylsilane molecules were studied. The luminescence was detected in the wavelength region ∼400–700 nm, which is characteristic of the luminescence spectra of silylenes. Based on a comparative analysis of the luminescence behavior and product buildup kinetics in the IR multiphoton dissociation of diethylsilane, a conclusion was drawn that ethylsilyl radicals as the products of the primary reaction of C–Si bond dissociation play the main role in the formation of luminescent species.

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