High-resolution Fourier transform spectroscopy of the CaO A1Σ+−X1Σ+ transition: New insights into perturbations by the and A1Π states

Ab initio study of the low-lying electronic states of the CaO molecule

“…This forthcoming study will aim at a precise interpretation of the observations of Fosca et al [1] and van Groenendael et al [2] who found strongly interacting vibrational states through the a 3 P $ A 01 P $ b 3 R + $ A 1 R + system.…”

“…The spectrum is very complex and presents numerous bands from UV to the near IR. The experimental work of Bernath and co-workers [1,2] on the CaO molecule using Fourier Transform spectroscopy has improved the spectroscopic knowledge of the X 1 R + , A 01 P, a 3 P, b 3 R + and A 1 R + electronic states for CaO, complementing the analysis of Field [3] based on the deperturbation of the A 1 R + -X 1 R + band recorded by Hultin and Lagerqvist [4] and Johansen [5]. Field and co-workers also prospected the orange and green parts of the spectrum by fluorescence spectroscopy [6][7][8] and extracted informations about the lowest excited states.…”

“…and references therein, deperturbation work . h Ref [1,2]. and references therein, using Fourier transform spectroscopy.…”

Evaluation of Dissociation Energies of the Diatomic (NdO, FeH and BaF) Molecules

“…The molecular constants required for the present study have been taken from literature [33][34][35][36][37][38][39] and are listed in Table 1. µ = Reduced mass, T e = Electronic energy above ground state (cm -1 ), ω e = Vibrational spacing (cm -1 ), ω e x e = Anharmonic correction to vibrational spacing (cm -1 ), B e = Rigid rotator rotational spacing (cm -1 ), α e = Non rigid rotator correction to B e (cm -1 ), r e = Equilibrium inter nuclear distance (A o ).…”

Reaction dynamics within a cluster environment

“…No calibration curve is needed in this case. [216][217][218][219]221 Chemiluminescence spectra and stoichiometry -The chemiluminescence observed from Ca/N 2 O mixtures deposited on helium nanodroplets (green curve) and argon clusters (black curve) are reported in the top panel of Fig. 16, their horizontal scale being magnified in the bottom panel.…”