High-resolution laser spectroscopy of methane clusters trapped in solid parahydrogen
High-resolution laser spectroscopy of methane clusters trapped in solid parahydrogen
复制标题
固体仲氢中捕获的甲烷簇的高分辨率激光光谱
DOI：
10.1063/1.475086
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
T. Shida
中科院分区：
文献类型：
--
作者：
T. Momose;H. Katsuki;H. Hoshina;Norihito Sogoshi;Tomonari Wakabayashi;T. Shida
甲烷团簇在固体仲氢中被分离。用傅里叶变换红外光谱仪和高分辨差频红外激光系统测量了甲烷分子ν4基频振动光谱区。发现了200多条尖锐的吸收线，其线宽窄至0.007 cm−1（200 MHz）。光谱表明，在固体仲氢中，小尺寸团簇的振转能级是量子化的。
Clusters of methane are isolated in solid parahydrogen. The vibrational spectral region of the ν4 fundamental of methane molecule is surveyed with a Fourier transform infrared spectrometer and a high-resolution difference-frequency infrared laser system. More than 200 sharp absorption lines are discovered whose linewidth is as narrow as 0.007 cm−1 (200 MHz). The spectrum indicates that the rovibrational levels of the clusters of small sizes are well quantized in solid parahydrogen.