The spectral features and detectability of small, cyclic silicon carbide clusters
نویسندگان
چکیده
Rovibrational spectral data for several tetra-atomic silicon carbide clusters (TASCCs) are computed in this work using a CCSD(T)-F12b/cc-pCVTZ-F12 quartic force field. Accurate theoretical spectroscopic may facilitate the observation of TASCCs interstellar medium which lead to more complete understanding how smallest (SiC) solids formed. Such processes essential SiC dust grain formation. Due prevalence medium, also shed light on subsequent planetary Rhomboidal Si 2 C is shown here have notably intense (247 km mol −1 ) anharmonic vibrational frequency at 988.1 cm (10.1 μ m) ν , falling into one emission features typically associated with unknown infrared bands various astronomical regions. Notable intensities present frequencies including cyclic forms 4 3 C, and . These 6–10 m range natural targets James Webb Space Telescope (JWST)’s MIRI instrument. Additionally, t -Si d r -SiC each possess dipole moments greater than 2.0 D making them interesting radioastronomical searches especially since already known astrophysical media.
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ژورنال
عنوان ژورنال: Frontiers in Astronomy and Space Sciences
سال: 2022
ISSN: ['2296-987X']
DOI: https://doi.org/10.3389/fspas.2022.1074879