| 光谱学与光谱分析 |
|
|
|
|
|
| Vibrational Energy Transfer from Vibrational Levels of RbH(X 1Σ＋，ｖ＝0～2) to H2 |
| SHEN Xiao-yan1，WANG Shu-ying2，LIU Jing2，DAI Kang2，SHEN Yi-fan2* |
1. School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
2. School of Physics, Xinjiang University, Urumqi 830046, China |
|
|
|
|
Abstract The vibrational energy transfer from vibrational levels of RbH(X 1Σ＋，ｖ＝0～2) by collision with H2 was determined using the integrated time-resolved laser induced fluorescence (LIF) in a five-arm crossed heat-pipe oven. Rb-H2 mixture was irradiated with pulses of 696.4 nm radiation from a OPO laser, populating 6D state by two-photon absorption. The vibrational levels of RbH(X 1Σ＋) generated in the reaction of Rb(6D) and H2 were detected by LIF technique. The nascent quantum state distributions of RbH were obtained when the delay time between the pump and probe laser was 20 ns. The nascent RbH product molecules were found to populate the lowest three vibrational (v=0, 1, 2) levels of the ground electronic state but could not be detected in any higher vibrational state. The integrated time-resolved LIF excited Ａ 1Σ＋→Ｘ 1Σ＋ system in the presence of H2 was recorded with delay time from 0 to 10 μs. The RbH signal of v=0, 1 levels first increased and then decreased on a larger time scale. RbH was created instantaneously then was quenched by collision and diffused. The rate equations for the population of the vibrational levels were given. The integrated profiles method permitted us to determine the rate coefficients for vibrational transfer of RbH(X 1Σ＋，ｖ＝0～2) by collision with H2. The rate coefficients for collisional transfer of RbH(X 1Σ＋) by collisions with H2 are(in units of 10-11 cm3·s-1) 3.4±0.8 and 2.8±0.6 for ｖ＝2→ｖ＝1 and ｖ＝1→ｖ＝0 respectively. The diffusion rates of v=0, 1, 2 are(in units of 105 s-1) 4.9±1.1, 1.0±0.3a nd 0.6±0.2, respectively. The experiment showed that vibrational relaxation from RbH(X 1Σ＋，ｖ＝0～2) was more efficient compared to that of other vibrational levels studied here.
|
|
Received: 2010-03-12
Accepted: 2010-06-16
|
|
|
|
Corresponding Authors:
SHEN Yi-fan
E-mail: shenyifan01@sina.com, shenyifan01@xju.edu.cn
|
|
[1] Flynn G W, Parmenter C S, Wodthe A M. J. Phys. Chem., 1996, 100: 12817.
[2] Grigorian G, Cenian A. Chem. Phys. Lett., 2009, 469: 247.
[3] WAN Hong-fei, ZHANG Yan-wen, CUI Xiu-hua, et al.(万鸿飞，张岩文，崔秀花，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2009, 29(8): 2042.
[4] Robinson J M, Renoberger K J, Crimm F F. J. Chem. Phys., 1986, 84: 220.
[5] Zemke W T, Stwalley W C. J. Chem. Phys., 1980, 73(11): 5584.
[6] Klatt M, Smith I W M, Tuckett R P, et al. Chem. Phys. Lett., 1994, 224: 253.
[7] Klatt M, Smith I W M, Symonds A C, et al. J. Chem. Soc., Faraday Trans. 1996, 92: 193.
[8] Hickson K M, Sharkey P, Smith I W M, et al. J. Chem. Soc., Faraday Trans., 1998, 94: 553.
[9] Watanabe S, Fujii H, Kohguchi H, et al. J. Phys. Chem., 2008, A112: 9290.
[10] Liu D K, Lin K C. J. Chem. Phys., 1997, 107(11): 4244.
[11] Huang X, Zao J Z, Xing G Q, et al. J. Chem. Phys., 1996, 104(4): 1338.
[12] Gallagher A, Lewis E L. J. Opt. Soc. Am., 1973, 63(7): 864. |
| [1] |
WANG Shu-ying*, YOU De-chang, MA Wen-jia, YANG Ruo-fan, ZHANG Yang-zhi, YU Zi-lei, ZHAO Xiao-fang, SHEN Yi-fan. Experimental Collisional Energy Transfer Distributions for Collisions of CO2 With Highly Vibrationally Excited Na2[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(06): 1760-1764. |
| [2] |
ZHOU Zi-hao1, YANG Fan2, 3, LI Dong1, WANG Jian-ping2, 3, XU Jian-hua1*. pH Dependent Time-Resolved Fluorescence Spectra of ZnSe Quantum Dots Based on Glutathione Ligands[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3178-3183. |
| [3] |
YIN Wen-zhi1，2，3, WANG Ting-yu1,3，ZHU Tuo1, 3, MA Chao-qun1, 3, GU Jiao1, 3, ZHU Chun1, 3, LI Lei1, 3, CHEN Guo-qing1, 3*. The Study on Fluorescence Spectral Characteristics of Three Brands of Milk[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 535-539. |
| [4] |
SUN Yan-wen1, CHANG Yu2, JIN Yu-fen1, XIE Wen-bing2, CHANG Jing1, YU Ting1*, PAN Li-hua2. Study of Synthesis and Spectral Property of Europium Cryptate[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(07): 2189-2193. |
| [5] |
CHANG Meng-fang1, JIA Meng-hui2, LI Lei1, CHEN Jin-quan1, XU Jian-hua1*. Time-Resolved Fluorescence and Thermodynamic Properties of Staphylococcal Nuclease[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(05): 1451-1457. |
| [6] |
ZHANG Xiao-he1, 2, MA Chao-qun1, 2*, CHEN Guo-qing1, 2, LIU Huai-bo1, 2, ZHU Chun1, 2, SONG Xin-shu1, 2, ZHU Cong-hai1, 2. The Fluorescnece Lifetime and Quantum Chemistry Calculation of Ethyl Caproate and Ethyl Acetate[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(02): 502-505. |
| [7] |
LIU Jing, DAI Kang, SHEN Yi-fan. Resonent Vibration-Vibration Energy Transfer Between Vibrationally Excited HBr (Χ1Σ+ ν″=5) and H2, N2, CO2, and HBr[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(10): 3000-3005. |
| [8] |
XIAO Xue1, ZHAO Nan-jing1*, YU Shao-hui2, MA Ming-jun1, YANG Rui-fang1, YIN Gao-fang1, DUAN Jing-bo1, DONG Yun-sheng1, LIU Jian-guo1, LIU Wen-qing1. Characterization of Polycyclic Aromatic Hydrocarbons with Time-Resolved Fluorescence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(06): 1793-1798. |
| [9] |
YANG Cheng-hu1, LIU Yang-zhi1, ZHU Ya-xian2, ZHANG Yong1，3*. In Situ Investigation of the Interactions of Pyrene and Phenanthrene with Humic Acid Using Laser Induced Nanoseconds Time Resolved Fluorescence Quenching Method Combined with PARAFAC Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(05): 1519-1524. |
| [10] |
XIAO Xue1, ZHAO Nan-jing1*, YU Shao-hui2, MA Ming-jun1, YANG Rui-fang1 . Laser Induced Time-Resolved Fluorescence Spectroscopy Characteristics of Fluoranthene in Ethanol with Eanosecond Laser of 355 nm [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(11): 3497-3500. |
| [11] |
LIU Yang-zhi1, YANG Cheng-hu1, ZHU Ya-xian2, ZHANG Yong1，3* . In Situ Investigating of the Interaction of Phenanthrene and Alkyl Phenanthrene with Humic Acid with Laser Induced Nanoseconds Time Resolved Fluorescence Quenching Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(10): 3332-3336. |
| [12] |
HAN Xiao-shuang1, 2, LIU De-qing1, LUAN Xiao-ning1, GUO Jin-jia1, LIU Yong-xin2, ZHENG Rong-er1* . Discrimination of Crude Oil Samples Using Laser-Induced Time-Resolved Fluorescence Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(02): 445-448. |
| [13] |
WANG Shu-ying, LI Jia-ling, DAI Kang, SHEN Yi-fan* . Collisional Relaxation between Highly Vibrationally Excited Na2 and Ar, and H2 [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(11): 2887-2891. |
| [14] |
PAN Hai-feng1, DING Jing-xin1, LIANG Rong-rong1, TAO Zhan-dong1, LIU Meng-wei1, ZHANG San-jun1*, XU Jian-hua1. Quenched Fluorescein: A Reference Dye for Instrument Response Function of TCSPC[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(08): 2284-2288. |
| [15] |
ZHANG Wen-jun, FENG Li, LI Jia-ling, LIU Jing, DAI Kang, SHEN Yi-fan* . Vibrational and Rotational Excitation of CO2 in the Collisional Quenching of H2 (ｖ=1) [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(06): 1492-1496. |
|
|
|
|
