title: Fourier transform infrared identification of the ν5(σu) fundamental of SiC5Si.
abstract: The Fourier transform infrared spectrum of SiC5Si was observed by trapping the vapor from the Nd:YAG laser ablation of sintered Si/C rods in solid Ar at ∼20 K. Measurements of (13)C and (29,30)Si isotopic shifts have enabled the identification of the ν5(σu) vibrational fundamental of the linear isomer of SiC5Si at 1590.8 ± 0.2 cm(-1). The results are in excellent agreement with the predictions of density functional theory calculations at the B3LYP/cc-pVDZ level. A second fundamental, ν4(σu), can only be tentatively identified at 2021.0 cm(-1), because its isotopic shifts are overlapped by absorptions from other species.
authors.affiliation: Department of Physics and Astronomy, Texas Christian University, Fort Worth, Texas 76129, USA.
authors.forename: T H
authors.initials: TH
authors.lastname: Lê
authors.affiliation: Department of Physics and Astronomy, Texas Christian University, Fort Worth, Texas 76129, USA.
authors.forename: C M L
authors.initials: CM
authors.lastname: Rittby
authors.affiliation: Department of Physics and Astronomy, Texas Christian University, Fort Worth, Texas 76129, USA.
authors.forename: W R M
authors.initials: WR
authors.lastname: Graham