Diode laser spectroscopy of the A1-A2 splittings in the v2 = 1 and v4 = 1 vibrational states of PH3

The ν2/ν4Diad of PH3

“…Several lines lying 15) have been recorded. A diode laser spectrum of the n 2 within the tuning range of our spectrometer could not be and n 4 vibration has been measured recently (18). Selected saturated.…”

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

“…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

“…1). In this case, making use of the conditions (a)-(c) as defined above in the general formulae [2]- [7] yields the following simple nonzero values of the K coefficients:…”

“…(12) [3] and lead to the secular equation [6] and . [7] Here r e N α are the Cartesian coordinates defining the equilibrium positions of the nuclei of the "mother" species in the molecule-fixed axis system. The values K e αγ can be also considered as the eigenvectors of the "inertia tensor" J e αβ with the eigenvalues I e γ γ .…”

“…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.…”