Abstract
The stability of Si2Me4 molecules in C2h and D2h symmetries were studied at M062X/Def2-TZVPP level of theory. Our calculations were performed for gas and solution phases. A self-consistent reaction field (SCRF) method, utilizing the polarizable continuum model (PCM) was used, and the solvation model utilized the radii and non-electrostatic terms of the solvent model density (SMD). The solvent effect on the structural parameters and reactivity parameters (hardness, chemical potential and electrophilicity) was explored. Stability of the SiMe2 fragments were investigated in the singlet and triplet states for illustration of the Si=Si bond character. Also, energy decomposition analysis (EDA) was used for calculations of the contribution of polarized and steric energy values in the interaction energy values between SiMe2 fragments in the two studied phase.
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