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首页> 外文期刊>Chemical Physics Letters >A theoretical and experimental study of the HPCl radical: the (A)over-tilde(2)A ' -> (X)over-tilde(2)A '' visible emission spectrum
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A theoretical and experimental study of the HPCl radical: the (A)over-tilde(2)A ' -> (X)over-tilde(2)A '' visible emission spectrum

机译:HPCl自由基的理论和实验研究:(A)波浪线(2)A'->(X)波浪线(2)A''可见发射光谱

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摘要

We report the first observation of the (A) over tilde (2)A' --> (X) over tilde (2)A " visible emission spectrum of HPCl. The spectrum shows a series of blue-degraded bands with two prominent progressions in the ground state bending vibration. Ab initio calculations are used to help to assign the observed spectrum. The experimentally derived constants are T-0 = 21 305 cm(-1), omega (2)" = 868 cm(-1) omega (2)' = 622 cm(-1) and omega (3)' = 529 cm(-1) compared with calculated values of T-0 = 23 518 cm(-1), omega (2)" = 893 cm(-1) omega (2)' = 670; cm(-1) and omega (3)' = 524 cm(-1). The bending progression results from a substantial change in the bond angle between the ground and electronically excited states from 96 degrees to 118 degrees. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 25]
机译:我们报告了对波浪线(2)A'->(X)在波浪线(2)A“上HPCl的可见发射光谱的首次观察。该光谱显示了一系列蓝色降解的谱带,具有两个突出的进展在基态弯曲振动中。从头算就可以用来分配观察到的光谱。实验得出的常数为T-0 = 21305 cm(-1),omega(2)“ = 868 cm(-1)omega (2)'= 622 cm(-1)和omega(3)'= 529 cm(-1),而计算值T-0 = 23 518 cm(-1),omega(2)“ = 893 cm( -1)Ω(2)'= 670; cm(-1)和Ω(3)'= 524 cm(-1)。弯曲过程是由基态和电子激发态之间的键角变化引起的96度到118度(C)2000 Elsevier Science BV保留所有权利[参考文献:25]

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