Determination of the Geometric Structure of Core Excited Silane Based on Photoabsorption Spectra Near the Si 2p Edges

The photoabsorption spectra near the Si 2p edges of SiH4 have been studied based on the multiple-scattering self-consistent-field method. Our theoretical calculations provide clear assignments of the inner-shell photoabsorption spectra. In comparison with high-resolution experimental spectra, the geometric structure of the Si 2p excited SiH4 * * is recommended as C2v symmetry.