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High-resolution Infrared Spectroscopy of 15N216O in 1650-3450 cm-1
Jun-he Du1, An-wen Liu*1, V. I. Perevalov2, S. A. Tashkun2, Shui-ming Hu1,3
1.Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;2.Laboratory of Theoretical Spectroscopy, V. E. Zuev Institute of Atmospheric Optics SB, Russian Academy of Science, 1, Akademician Zuev sq., 634021, Tomsk, Russia;3.Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
Abstract:
High-resolution ro-vibrational spectroscopy of 15N216O in 1650-3450 cm-1 region is studied using highly enriched isotopologue sample. The positions of more than 7300 lines of 15N216O isotopologue were measured with a typical accuracy of 5.0×10-4 cm-1. The transitions were rovibrationally assigned on the basis of the global effective Hamiltonian model. The band by band analysis allowed for the determination of the rovibrational parameters of a total of 73 bands. 29 of them are newly reported and more rotational transitions have been observed for the others. The maximum deviation of the preidictions of the effective Hamiltonian model is up to 0.70 cm-1 for the 15N216O species.
Key words:  Infrared spectroscopy, 15N216O, High-resolution, Effective Hamiltonian
FundProject:
15N216O在1650-3450 cm-1的高分辨红外光谱
杜军和1, 刘安雯*1, V. I. Perevalov2, S. A. Tashkun2, 胡水明*1,3
1.中国科学技术大学化学物理系,合肥230026;2.俄罗斯科学院大气光学研究所西伯利亚分院理论光谱实验室,托木斯克634021;3.中国科学技术大学合肥微尺度物质科学国家实验室,合肥230026
摘要:
采用傅里叶变换红外光谱仪记录了富含15N216O同位素的一氧化二氮样品在1650-3450 cm-1波段的高分辨振转光谱,得到了该同位素分子超过7300吸收谱线位置的实验值,经分析实验精确度好于5.0×10-4 cm-1. 基于有效哈密顿量模型预测和带带转动分析,确定了所有吸收线的归属;获得了29个新吸收带的振转光谱参数,并优化了其他44个吸收带的光谱参数值. 并且发现有效哈
关键词:  红外光谱,15N216O,高分辨,有效哈密顿量
DOI:10.1088/1674-0068/24/05/611-619
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