Fourier-transform spectroscopy and potential construction of the (2)1Π state in KCs

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...

参考文章(35)
A. Kruzins, I. Klincare, O. Nikolayeva, M. Tamanis, R. Ferber, E. A. Pazyuk, A. V. Stolyarov, Fourier-transform spectroscopy of (4)1Σ+ → A 1Σ+ − b 3Π, A 1Σ+ − b 3Π → X1Σ+, and (1)3Δ1→bΠ0±3 transitions in KCs and deperturbation treatment of A 1Σ+ and b 3Π states Journal of Chemical Physics. ,vol. 139, pp. 244301- 244301 ,(2013) , 10.1063/1.4844275
A. Pashov, W. Jastrzȩbski, P. Kowalczyk, The Li2 F 1Σg+ “shelf” state: Accurate potential energy curve based on the inverted perturbation approach Journal of Chemical Physics. ,vol. 113, pp. 6624- 6628 ,(2000) , 10.1063/1.1311297
C Amiot, J Vergès, C Effantin, J d'Incan, The KRb (2)1Π electronic state Chemical Physics Letters. ,vol. 321, pp. 21- 24 ,(2000) , 10.1016/S0009-2614(00)00262-1
O. Nikolayeva, I. Klincare, M. Auzinsh, M. Tamanis, R. Ferber, E. A. Pazyuk, A. V. Stolyarov, A. Zaitsevskii, R. Cimiraglia, Permanent electric dipoles in B 1Π and D 1Π states of NaRb: Experiment and theory Journal of Chemical Physics. ,vol. 113, pp. 4896- 4900 ,(2000) , 10.1063/1.1289249
Yonghoon Lee, Youngjee Yoon, Sungyul Lee, Jin-Tae Kim, Bongsoo Kim, Parallel and Coupled Perpendicular Transitions of RbCs 640 nm System: Mass-Resolved Resonance Enhanced Two-Photon Ionization in a Cold Molecular Beam The Journal of Physical Chemistry A. ,vol. 112, pp. 7214- 7221 ,(2008) , 10.1021/JP803360W
James K.G. Watson, Robust weighting in least-squares fits Journal of Molecular Spectroscopy. ,vol. 219, pp. 326- 328 ,(2003) , 10.1016/S0022-2852(03)00100-0
E. A. PAZYUK, A. V. STOLYAROV, A. ZAITSEVSKII, R. FERBER, P. KOWALCZYK, C. TEICHTEIL, Spin-orbit coupling in the D1Pi d3Pi complex of 23Na39K Molecular Physics. ,vol. 96, pp. 955- 961 ,(1999) , 10.1080/00268979909483035
O. Docenko, M. Tamanis, J. Zaharova, R. Ferber, A. Pashov, H. Knöckel, E. Tiemann, High resolution spectroscopy and potential determination of the (3)Π1 state of NaCs The Journal of Chemical Physics. ,vol. 124, pp. 174310- 174310 ,(2006) , 10.1063/1.2189237
A. Grochola, W. Jastrzebski, P. Kowalczyk, P. Crozet, A.J. Ross, The molecular constants and potential energy curve of the D1Π state in KLi Chemical Physics Letters. ,vol. 372, pp. 173- 178 ,(2003) , 10.1016/S0009-2614(03)00396-8