Ã←transition of Rg·NO complexes (Rg=rare gas) observed using resonance-enhanced multiphoton ionization (REMPI) spectroscopy Xe·NO

Ã←transition of Rg·NO complexes (Rg=rare gas) observed using resonance-enhanced multiphoton ionization (REMPI) spectroscopy Xe·NO
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←使用共振增强多光子电离 (REMPI) 光谱 Xe·NO 观察 Rg·NO 配合物(Rg=稀有气体)的转变

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发表时间:
1998
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通讯作者:
T. G. Wright
T. G. Wright
中科院分区:
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文献类型:
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作者:
P. Mack;J. Dyke;T. G. Wright

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用单色(1+1)共振增强多光子电离(REMPI)光谱研究了NO分子复合物的A←跃迁.光谱显示出复杂的振动结构,其终止于尖锐的截止。光谱记录在两个的NO3·NO+和NO3+质量通道;两个光谱显示相同的结构,除了(i)的一些功能的相对强度不同的两个光谱和(ii)NO3 * 跃迁中观察到的NO3+质量通道。本文讨论了在~(13)+质量通道中出现的NO谱。光谱允许测量A←跃迁的T0值为44163.2 cm-1,以及估计和A态的解离能:分别为121和157 cm-1。未分析光谱中观察到的振动结构。在所用的任何条件下都没有观察到Ne·NO的A←谱。讨论了Rg·NO(Rg=稀有气体)配合物的A态的光谱和成键趋势,认为Ne·NO和He·NO的A态要么是很弱的键合态,要么是离解态.
The A←transition of the Xe·NO molecular complex has been studied using one-colour (1+1) resonance-enhanced multiphoton ionization (REMPI) spectroscopy. The spectrum shows a complicated vibrational structure, which terminates in a sharp cut-off. The spectrum was recorded in both the Xe·NO+ and the Xe+ mass channels; both spectra showed identical structure, except (i) the relative intensities of some of the features differed between the two spectra and (ii) Xe* transitions were observed in the Xe+ mass channel. The appearance of the Xe·NO spectrum in the Xe+ mass channel is discussed. The spectra allow the T0 value of the A←transition to be measured as 44163.2 cm-1 , as well as estimates to be made of the dissociation energy of both the and Astates: 121 and 157 cm-1, respectively. The vibrational structure observed in the spectrum was not analysed. No A←spectra of Ne·NO were observed under any of the conditions used. Trends in the spectroscopy and bonding of the Astate of the Rg·NO complexes (Rg=rare gas) are discussed, and the Astates of Ne·NO and He·NO are concluded to be either very weakly bound or dissociative.