The microwave spectrum of the FeS radical

The pure rotational spectrum of ZnS (X1Σ+)

“…This is especially true when there are several other nearby potentials. In that case, the potential energy curve of interest [5][6][7][8][9][10][11][12][13][14][44][45][46][47][48][49][50][51][52]. The trends are similar in both series, but there are variations, particularly from Mn to Zn.…”

Laser-induced fluorescence spectroscopy of FeS in the visible region

“…We have used the band origins in square brackets instead of the conventional ''letter" notation to label the excited states. Considering that the ground state of FeS has been established as X 5 D 4 [16], we assign the four parallel transitions as [19.25] X 0 = 4 (v 0 = 3-11) À X 5 D 4 (v 00 = 0), [19.42] [18.99] X 0 = 4 (v 0 = 0-8, v 0 = 7 was overlapped) À X 5 D 4 (v 00 = 0), and [19.61] X 0 = 4 (v 0 = 0-6) À X 5 D 4 (v 00 = 0), and the perpendicular one as [19.32] …”

“…A band-by-band least-squares fitting process was employed to derive the rotational constants and the band origins of the upper state for each band according to Hund's case (a). The accurate rotational constants of the ground state X 5 D 4 [16,19] were used and held fixed in the simulation. The line shape was convoluted with a Gauss- ian function, and the rotational distribution was assumed to be Boltzmann incorporated with a Hönl-London factor.…”

“…Until this work, there are only one experimental rotational spectra study [16] on FeS has been carried out except the earlier vibrational spectra in matrices [17] and the photoelectron spectra [18]. The rotational spectrum of FeS was measured in the frequency range of 220-390 GHz with a source-modulated millimeter/submillimeter-wave spectrometer [16], from which the ground state of FeS was assigned as an X 5 D i state with a spin-orbit constant A % À44.7 cm À1 . Several series of paramagnetic lines which were presumed to FeS in the vibrationally excited state of the ground state and in the electronically excited state (A 5 R + ) were also detected.…”

Millimeter- and submillimeter-wave spectra of platinum monosulfide (PtS) in the state

“…A similar reaction has been employed in microwave studies of transition metal monosulfides, FeS [21] and NiS [22], as well as platinum compounds, PtO [12], PtCO [23], PtCN [24], PtF [25], and PtCl [25]. The transition frequencies of PtS in the ground state were predicted using the molecular constants determined from the Fourier transform microwave spectrum [16].…”