Study of the vibrational spectra of (CH₃)₃GeCl from experimental and DFT calculations

Abstract

New infrared (for gas and liquid phase) and Raman (for liquid) spectra were measured for the chlorotrimethylgermane to obtain a complete assignment of its fundamental modes. The measurement of the low-temperature infrared spectrum together with the application of Fourier self-deconvolution to the Raman spectra resolves the C-H vibrational modes into their components. The Rauhut and Pulay scaled quantum mechanical (SQM) force field methodology and the wavenumber-linear scaling (WLS) method were used to predict the vibrational spectra as a guide to the assignment of the fundamental bands. A quantum mechanical analysis was carried out to obtain the harmonic force field.

Distribution of free carriers near heavily-doped epitaxial surfaces of n-type Ge(100) upon HF and HCl treatments

“…The peak assigned as a plasmon mode of the conduction band electrons was also observed at ∼102 meV. In our spectra, the mono-chloride (Ge-Cl) mode, expected at around 363 cm −1 (∼45 meV), 25 was not clearly resolved, which indicates the dominant di-chloride coverage.…”