The infrared spectrum of CH3D. Ground state constants and perturbation allowed transitions

Microwave, Submillimeter-Wave, and High-Resolution FTIR Spectra of AsF3in the ν2and ν4States

“…The symmetrized wavefunctions are formed as symmetric and antisymmetric the (0, 3) k-type interaction which couples states with Dl wavefunctions. The corresponding levels are labeled as A / Å 0, Dk Å {3, defined as in (32), and A 0 using the notation of Olson (33). …”

Observation of a forbidden infrared transition in 11BF3

“…In the past, many observations have been made on forbidden transitions that borrow intensity from allowed transitions through perturbations [4,5]. In most cases the perturbations are caused by nearby levels and the transitions responsible for the loaned intensity are readily identified.…”

Analysis of the CH3D Nonad from 2000 to 3300 cm−1

“…Its ground state has been determined for both 12 CH 3 D (3, 4) and 13 CH 3 D (5). Most infrared studies have been devoted to the bands within the triad region containing the three lowest fundamentals, ν 6 , ν 3 , and ν 5 (3,(5)(6)(7)(8)(9)(10), while the region of the three highest fundamentals ν 2 , ν 1 , and ν 4 has received less attention (11)(12)(13)(14)(15)(16). With a few exceptions (17)(18)(19)(20), spectral intervals at shorter wavelengths are largely unexamined.…”