Submillimeter-wave spectroscopy of VN (X3Δr) and VO (X4Σ−): A study of the hyperfine interactions

MILLIMETER/SUBMILLIMETER SPECTROSCOPY OF TiO (X3Δr): THE RARE TITANIUM ISOTOPOLOGUES

“…For 47 TiO and 49 TiO, the magnetic hyperfine parameters a, b, and (b+c), as well as the electric quadrupole coupling constant, eQq, were additionally fitted. Furthermore, as found for VN in its X 3 Δ r state (Flory & Ziurys 2007), a perturbation term Δa had to be included for the Ω=2 component. As has been noted by these authors and others (e.g., Azuma et al 1989), the hyperfine structure of the Ω=2 level is perturbed by a nearby 1 Δexcited state, in this case, the a 1 Δterm.…”

“…The higher value of Ω also contributes to the extent of the splitting; see Equation (2). The electron configuration of TiO is δ 1 σ 1 (e.g., Merer 1989 Flory & Ziurys 2007). For titanium, the atomic b F =−782MHz (Morton & Preston 1978).…”

“…As described by Flory & Ziurys (2007) and by Balfour et al (1993), an expression Δa can be obtained from second-order perturbation theory:…”

The pure rotational spectrum of ZnO in the X1Σ+ and a3Πi states

“…To date, high-resolution spectroscopy has been used to study all of the 3d transition metal monoxides [1,[4][5][6][7][8][9][10][11][12], with the exception of ZnO. This absence is surprising, as the predicted ground state for ZnO is closed-shell, 1 R + , and should yield a relatively simple spectrum.…”

Division Xii/Commission 14/Working Group on Molecular Data

“…Hydride species include AlH , CrH (Harrison et al 2006), MnH , and FeH . Among the nitride and oxide species studied are VN and VO (Flory & Ziurys 2008), CoO (McLamarrah et al 2005), ZnO (Zack et al 2009), and even TiO 2 (Kania et al 2011). Several halogenides have been investigated, such as NaCl and KCl (Caris et al 2004), TiF , TiCl (Maeda et al 2001), VCl (Halfen et al 2009b), CoF (Harrison et al 2007), CoCl , ZnF (Flory et al 2006), and ZnCl (Tenenbaum et al 2007).…”