作者: I. Birzniece , O. Nikolayeva , M. Tamanis , R. Ferber
DOI: 10.1063/1.4916906
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摘要: The paper presents an empirical pointwise potential energy curve (PEC) of the (2)1Π state KCs molecule constructed by applying Inverted Perturbation Approach routine. experimental term values in range E(v′, J′) ∈ [15 407; 16 579] cm−1 involved fit were based on Fourier-Transform spectroscopy data obtained with 0.01 accuracy from laser-induced → X1Σ+ fluorescence spectra. Buffer gas Ar was used to facilitate appearance rotation relaxation lines spectra, thus enlarging set and allowing determination Λ-splitting constants. included vibrational v′ [0, 28] rotational J′ [7, 274] quantum numbers covering about 67% well. present PEC reproduces overall a standard deviation 0.5 cm−1. value Λ-doubling constant q = + 1.8 × 10−6 for > 50 6] is excellent agreement 1.84 reported K...