Abstract
The infrared spectrum of mono–silane was measured at varied experimental conditions with a Bruker Fourier transform infrared spectrometer IFS125HR and analyzed for the first time in the 2600–2950 cm−1 region of the octad where 16 strongly interacting triply excited bending bands are located. The 3505 transitions belonging to fourteen sub–bands of the octad (with the exception of unappeared 3ν4(A1) and 3ν2(A2)) were assigned (Jmax=20) and theoretically analyzed in the frame of the effective Hamiltonian model. The obtained set of 139 fitted parameters reproduces the initial 3505 experimental line positions with the drms=7.3×10−4 cm−4. A list of assigned experimental transitions is presented as the Supplementary data 2 to this paper.
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