The ν2/ν4Diad of PH3

High-Resolution Study of the Three Lowest Infrared Bands of PHD2

“…Upper state energies obtained from the experimental transitions and gathered in columns 2, 5, and 8 of Table 3 were used in the fit procedure using the Hamiltonian [1]- [8]. As the Table 3, is the experimental uncertainty of the energy value, equal to one standard deviation in units of 10 −5 cm −1 ; δ is the difference E ex p. − E calc.…”

“…As a consequence, spectroscopic effects and peculiarities should be particularly pronounced in the spectra of phosphine species. Both PH 3 and PD 3 and the partially deuterated PH 2 D species have been studied to some extent (see, e.g., (1,2,(6)(7)(8) and references cited therein). As to PHD 2 , this has been studied only in the microwave region (9)(10)(11)(12)(13), and recently in the far infrared regions (1).…”

Isotopic Effects in XH3 (C3v) Molecules: The Lowest Vibrational Bands of PH2D Reinvestigated

“…It should be mentioned that the relations Eq. [8] determine the rotation of the molecular coordinate axis from the configuration shown in Fig. 1a to the configuration illustrated in Fig.…”

“…Using relations [8], [9] and the values of the transformation coefficients l N αµ of the "mother" molecule X H 3 as reported in Table 1 in the general formula [1], one can obtain without difficulties very simple relations for the l Kβλ coefficients for the X H 2 D species. It should be mentioned that the relations Eq.…”

“…Extensive studies of PH 3 spectra have been performed in the infrared region (see (6)(7)(8) and references cited therein). To the contrary, there are only two contributions devoted to the analysis of infrared spectra of the PH 2 D species: the bands ν 2 (a ), ν 3 (a ), ν 4 (a ), and ν 6 (a ) [ν 3a , ν 4a , ν 2 , and ν 4b in the notation of Refs.…”