Survey of Ar-Tagged Predissociation and Vibrationally Mediated Photodetachment Spectroscopies of the Vinylidene Anion, C2H2

Helen K. Gerardi; Kristin J. Breen; Timothy L. Guasco; Gary H. Weddle; George H. Gardenier; Jennifer E. Laaser; Mark A. Johnson

首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Survey of Ar-Tagged Predissociation and Vibrationally Mediated Photodetachment Spectroscopies of the Vinylidene Anion, C2H2

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Survey of Ar-Tagged Predissociation and Vibrationally Mediated Photodetachment Spectroscopies of the Vinylidene Anion, C2H2

机译：亚乙烯基阴离子C2H2的Ar标记预解离和振动介导的光解谱研究

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We report predissociation spectra of Ar-tagged C2H2 - and C2D2 - anions, and explore vibrationally mediated photodetachment from various vibrational levels of the bare C2H2 - ion using velocity-map imaging. Intense photodetachment resonances are observed in the C-H stretching region that are strongly correlated with vibrational hot bands in the anion photoelectron spectra, indicating that one-color, resonant two-photon photodetachment (R2PD) is complicated by excitation of vibrationally excited states with autodetaching upper levels embedded in the continuum. Isolation of the R2PD spectrum was achieved using a two-color, IR-IR scheme in which vibrational excitation and photodetachment were carried out in two separate laser interaction regions.

机译：我们报告了带有Ar标签的C2H2-和C2D2-阴离子的预解离光谱，并使用速度图成像从裸露的C2H2-离子的各种振动水平探讨了振动介导的光解离。在CH拉伸区域中观察到强烈的光解离共振，其与阴离子光电子光谱中的振动热带密切相关，这表明单色激发的双光子光解离（R2PD）复杂于通过激发具有自分离上限的振动激发态嵌入连续体中。 R2PD光谱的隔离是使用双色IR-IR方案实现的，其中在两个单独的激光相互作用区域中进行了振动激发和光分离。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2010年第3期|共10页
作者
Helen K. Gerardi; Kristin J. Breen; Timothy L. Guasco; Gary H. Weddle; George H. Gardenier; Jennifer E. Laaser; Mark A. Johnson;
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正文语种 eng
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Survey; Ar-Tagged; Predissociation and Vibrationally;

机译：调查;带有Ar标签的;预分解和振动;

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1. Survey of Ar-Tagged Predissociation and Vibrationally Mediated Photodetachment Spectroscopies of the Vinylidene Anion, C2H2 [J] . Helen K. Gerardi, Kristin J. Breen, Timothy L. Guasco, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2010,第3期

机译：亚乙烯基阴离子C2H2的Ar标记预解离和振动介导的光解谱研究
2. Vibrational predissociation spectroscopy and theory of Ar-tagged, protonated Imidazole (Im) Im_(1-3)H~+·Ar clusters [J] . Gerardi H.K., Gardenier G.H., Viswanathan U., Chemical Physics Letters . 2010,第4a6期

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4. INFRARED PREDISSOCIATION SPECTROSCOPY OF H_(2)-TAGGED DICARBOXYLIC ACID ANIONS [C] . ARRON B. WOLK, MICHAEL Z. KAMRATH, CHRISTOPHER M. LEAVITT, International Symposium on Molecular Spectroscopy . 2011

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5. Charge Accommodation in Organic Motifs: Using Vibrational Predissociation Spectroscopy of Cold Gas Phase Ions to Unravel Structures of Reactive Intermediates. [D] . DeBlase, Andrew. 2014

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6. Probing the vibrational spectroscopy of the deprotonated thymine radical by photodetachment and state-selective autodetachment photoelectron spectroscopy via dipole-bound states [O] . Dao-Ling Huang, Hong-Tao Liu, Chuan-Gang Ning, 2015

机译：通过光分离和通过偶极子束缚态进行状态选择性自动分离光电子能谱探测去质子化的胸腺嘧啶自由基的振动光谱
7. Intermolecular interaction potentials for the Ar–C2H2, Kr–C2H2, and Xe–C2H2 weakly bound complexes: Information from molecular beam scattering, pressure broadening coefficients, and rovibrational spectroscopy [O] . Cappelletti, David, Bartolomei, Massimiliano, Carmona-Novillo, Estela, 2007

机译：Ar–C2H2，Kr–C2H2和Xe–C2H2弱键合配合物的分子间相互作用势：来自分子束散射，压力展宽系数和振动光谱的信息
8. Vibrational Predissociation Spectroscopy of Hydrogen Cluster Ions [R] . Okumura, M., Yeh, L. I., Lee, Y. T. 1985

机译：氢簇离子的振动预解离光谱

Survey of Ar-Tagged Predissociation and Vibrationally Mediated Photodetachment Spectroscopies of the Vinylidene Anion, C2H2

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