ROTATIONALLY RESOLVED SPECTROSCOPY OF SF6 IN LIQUID-HELIUM CLUSTERS - A MOLECULAR PROBE OF CLUSTER TEMPERATURE
ROTATIONALLY RESOLVED SPECTROSCOPY OF SF6 IN LIQUID-HELIUM CLUSTERS - A MOLECULAR PROBE OF CLUSTER TEMPERATURE
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DOI：
10.1103/physrevlett.75.1566
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发表时间：
1995-08-21
影响因子：
8.6
通讯作者：
VILESOV, A
中科院分区：
文献类型：
--
作者：
HARTMANN, M;MILLER, RE;VILESOV, A
获得了大约 4000 个原子的氦簇内部捕获的 SF6 分子的旋转分辨红外光谱。尽管所得的旋转常数远小于自由 SF6 的旋转常数，但光谱仍根据球顶哈密顿量进行解释。这可以归因于分子与周围氦液之间的相互作用。结果表明，SF6 位于氦团簇内部，并且与光谱的拟合得出受扰动的 SF6 的旋转温度为 0.37 +/- 0.05 K。
A rotationally resolved infrared spectrum has been obtained for SF6 molecules captured inside of helium clusters of approximately 4000 atoms. The spectrum is interpreted in terms of a spherical top Hamiltonian, although the resulting rotational constant is considerably smaller than that of free SF6. This can be attributed to the interaction between the molecule and the surrounding helium liquid. The results indicate that the SF6 is located inside the helium cluster and a fit to the spectrum yields a rotational temperatures for the perturbed SF6 of 0.37 +/- 0.05 K.