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通过共振多光子电离-飞行时间法, 记录了氯化氢分子在84800-85700 cm-1范围内, F1Δ2 (v’=1) 里德堡态以及V1∑+ (v’=13, 14) 离子对态的电离产物H+, 35Cl+, H35Cl+ 及其同位素的光谱数据. 由于受离子对态V1∑+ 的作用, F1Δ2 (v’=1)态呈现出明显的近共振相互作用特性. 为了分析F1Δ2与V1∑+态之间存在的光谱微扰, 基于光解离电离通道的分析, 并针对F1Δ2 (v’=1)态离子信号比的变化, 将离子信号二能级作用模型优化到三能级的作用模型, 计算得到了微扰强度值为0.6 cm-1, 预解离系数γ为0.025. 此外, 对于F1Δ2 (v’=1) 与V1∑+ (v’=13, 14)态的三个振动能级的光谱峰位置, 采用光谱解微扰法拟合, 同样得到了类似的微扰强度和去微扰后的各光谱参数. 研究表明, 激发至F1Δ2 (v’=1)态得到的H+, Cl+ 离子主要是该态通过与离子对态耦合作用而产生, 而F1Δ2 (v’=1) 态光谱位置偏移不仅受离子对态而且还受其他里德堡态作用的影响. 同时, 非零γ 值证实了F1Δ2态预解离的存在.Spectra of H+, 35Cl+, H35Cl+ and their isotopologues, due to resonance enhanced multiphoton ionization (REMPI) of HCl via the F1Δ2 (v’=1) Rydberg and V1∑+ (v’=13, 14) ion-pair states are recorded in a range of 84800-85700 cm-1. Perturbation effects indicate the resonance interaction between the F1Δ2 (v’=1) and V1∑+ (v’=14) states. An improved model for analyzing relative signal intensity of spectrum, based on state interaction and photofragmentation process, is used to analyze the F1Δ2 (v’=1) spectral data. Interaction strength (W’=0.6 cm-1) and a predissociation parameter (γ=0.025) are derived. Comparable interaction strength and unperturbed spectroscopic parameters are derived from the deperturbation analysis of line positions for the F1Δ2 (v’=1) and V1∑+ (v’=13, 14) spectra. The study indicates that the formation of the H+ and Cl+ ions via two-photon resonance excitation of F1Δ2 (v’=1) state is associated with the state interaction. An indication of the line-shift of F1Δ2 (v’=1) state spectrum due to Rydberg-to-Rydberg state interaction is also found. The nonzero γ value suggests that the predissociation of the F1Δ2 state is important.
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[2] Ginter D S, Ginter M L 1981 J. Mol. Spectrosc. 90 177
[3] Tilford S G, Ginter M L 1971 J. Mol. Spectrosc. 40 568
[4] Nee J B, Suto M, Lee L C 1986 J. Chem. Phys. 85 719
[5] Green D S, Wallace S C 1992 J. Chem. Phys. 96 5857
[6] Green D S, Bickel G A, Wallace S C 1991 J. Mol. Spectrosc. 150 388
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[17] Lu G H, Sun W G, Feng H 2004 Acta Phys. Sin. 53 1758 (in Chinese) [鲁光辉, 孙卫国, 冯 灏 2004 53 1758]
[18] Long J M, Wang H S, Kvaran A 2013 J. Chem. Phys. 138 044308
[19] Matthísson K, Long J, Wang H, Kvaran Á 2011 J. Chem. Phys. 134 164302
[20] Long J M, Hróðmarsson H R, Wang H S, Kvaran Á 2012 J. Chem. Phys. 136 214315
[21] Long J M, Wang H S, Kvaran Á 2012 J. Mol. Spectrosc. 282 20
[22] Xie Y J, Reilly P T A, Chilukuri S, Gordon R J 1991 J. Chem. Phys. 95 854
[23] Liyanage R, Reilly P T A, Yang Y A, Gordon R J 1993 Chem. Phys. Lett. 216 544
[24] Alexander M H, Li X, Liyanage R, Gordon R J 1998 Chem. Phys. 231 331
[25] Kvaran Á, Wang H S, Logadóttir Á 2000 J. Chem. Phys. 112 10811
[26] Kvaran Á, Matthiasson K, Wang H S 2009 J. Chem. Phys. 131 044324
[27] Kvaran Á, Wang H S, Matthiasson K, Bodi A, Jonsson E 2008 J. Chem. Phys. 129 164313
[28] Kauczok S, Maul C, Chichinin A I, Gericke K H 2010 J. Chem. Phys. 133 024301
[29] Wang Z, Zhang L M, Wang F, Li J, Yu S Q 2003 Acta Phys. Sin. 52 3027 (in Chinese) [王仲, 张立敏, 王峰, 李江, 俞书勤 2003 52 3027]
[30] Romanescu C, Manzhos S, Boldovsky D, Clarke J, Loock H P 2004 J. Chem. Phys. 120 767
[31] Chichinin A I, Maul C, Gericke K H 2006 J. Chem. Phys. 124 224324
[32] Lefebvre-Brion H, Field R W 2004 The Spectra and Dynamics of Diatiomic Molecules (Amsterdam: Elsevier Academic Press)
[33] Liyanage R, Gordon R J, Field R W 1998 J. Chem. Phys. 109 8374
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[1] Price W C 1938 Proc. Roy. Soc. Ser. A 167 216
[2] Ginter D S, Ginter M L 1981 J. Mol. Spectrosc. 90 177
[3] Tilford S G, Ginter M L 1971 J. Mol. Spectrosc. 40 568
[4] Nee J B, Suto M, Lee L C 1986 J. Chem. Phys. 85 719
[5] Green D S, Wallace S C 1992 J. Chem. Phys. 96 5857
[6] Green D S, Bickel G A, Wallace S C 1991 J. Mol. Spectrosc. 150 388
[7] Green D S, Bickel G A, Wallace S C 1991 J. Mol. Spectrosc. 150 354
[8] Green D S, Bickel G A, Wallace S C 1991 J. Mol. Spectrosc. 150 303
[9] Wang H S, Kvaran Á 2007 Acta Phys. Chim. Sin. 23 1543 (in Chinese) [王华胜, Kvaran Ágúst 2007 物理化学学报 23 1543]
[10] Wang K, McKay V 1991 J. Chem. Phys. 95 8718
[11] Maul C, Chichinin A I, Gericke K H 2011 J. Atom Mol. Opt. Phys. 2011 410108
[12] Pitarch-Ruiz J, Merás A S D, Sáchez-Maí J 2008 J. Phys. Chem. A 112 3275
[13] van Dishoeck E F, van Hemert M C, Dalgarno A 1982 J. Chem. Phys. 77 3693
[14] Singleton L, Brint P 1997 J. Chem. Soc. Faraday Trans. 93 21
[15] Li Y, Bludsky O, Hirsch G, Buenker R J 2000 J. Chem. Phys. 112 260
[16] Lefebvre-Brion H, Liebermann H P, Vázquez G J 2011 J. Chem. Phys. 134 204104
[17] Lu G H, Sun W G, Feng H 2004 Acta Phys. Sin. 53 1758 (in Chinese) [鲁光辉, 孙卫国, 冯 灏 2004 53 1758]
[18] Long J M, Wang H S, Kvaran A 2013 J. Chem. Phys. 138 044308
[19] Matthísson K, Long J, Wang H, Kvaran Á 2011 J. Chem. Phys. 134 164302
[20] Long J M, Hróðmarsson H R, Wang H S, Kvaran Á 2012 J. Chem. Phys. 136 214315
[21] Long J M, Wang H S, Kvaran Á 2012 J. Mol. Spectrosc. 282 20
[22] Xie Y J, Reilly P T A, Chilukuri S, Gordon R J 1991 J. Chem. Phys. 95 854
[23] Liyanage R, Reilly P T A, Yang Y A, Gordon R J 1993 Chem. Phys. Lett. 216 544
[24] Alexander M H, Li X, Liyanage R, Gordon R J 1998 Chem. Phys. 231 331
[25] Kvaran Á, Wang H S, Logadóttir Á 2000 J. Chem. Phys. 112 10811
[26] Kvaran Á, Matthiasson K, Wang H S 2009 J. Chem. Phys. 131 044324
[27] Kvaran Á, Wang H S, Matthiasson K, Bodi A, Jonsson E 2008 J. Chem. Phys. 129 164313
[28] Kauczok S, Maul C, Chichinin A I, Gericke K H 2010 J. Chem. Phys. 133 024301
[29] Wang Z, Zhang L M, Wang F, Li J, Yu S Q 2003 Acta Phys. Sin. 52 3027 (in Chinese) [王仲, 张立敏, 王峰, 李江, 俞书勤 2003 52 3027]
[30] Romanescu C, Manzhos S, Boldovsky D, Clarke J, Loock H P 2004 J. Chem. Phys. 120 767
[31] Chichinin A I, Maul C, Gericke K H 2006 J. Chem. Phys. 124 224324
[32] Lefebvre-Brion H, Field R W 2004 The Spectra and Dynamics of Diatiomic Molecules (Amsterdam: Elsevier Academic Press)
[33] Liyanage R, Gordon R J, Field R W 1998 J. Chem. Phys. 109 8374
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