IR-High resolution spectroscopy of the N2O dimer: The torsional mode
IR-High resolution spectroscopy of the N2O dimer: The torsional mode
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DOI：
10.1039/b300733m
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发表时间：
2003-05
影响因子：
3.3
通讯作者：
A. Hecker;I. Scheele;M. Havenith
中科院分区：
文献类型：
--
作者：
A. Hecker;I. Scheele;M. Havenith
用计算机控制的铅盐二极管激光光谱仪在2244 ~ 2252 cm−1范围内观测了N2O-N2O范德华配合物的旋转分辨红外光谱。本文报道了在（N2O）2中首次观测到的范德华模式。1569条吸收谱线可以归结为n20 -单体的ν3-不对称拉伸与n20 -二聚体的ν -范德华模式（扭转）的结合。光谱的带原点在ν0 = 2247.83 cm−1处，比N2O二聚体的ν3激发高20.0 cm−1。这与37.84 cm−1的理论预测值有很大的偏差（C. Dutton,）
The rotational resolved IR-spectrum of the N2O–N2O van der Waals complex has been observed in the region of 2244–2252 cm−1 using a computer controlled lead salt diode laser spectrometer. This paper reports on the first observation of a van der Waals mode in (N2O)2. 1569 absorption lines could be assigned to the combination of the fundamental ν3-asymmetric stretch of N2O-monomer with the νtor-van der Waals mode (torsion) of the N2O-dimer. The band origin of the spectrum is observed at ν0 = 2247.83 cm−1 which is 20.0 cm−1 above the ν3 excitation of the N2O dimer. This deviates considerably from the theoretically predicted value at 37.84 cm−1 (C. Dutton, )