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首页> 外文期刊>The Journal of Chemical Physics >Infrared spectroscopy of C-3-(H2O)(n) and C-3-(D2O)(n) complexes in helium droplets
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Infrared spectroscopy of C-3-(H2O)(n) and C-3-(D2O)(n) complexes in helium droplets

机译：氦液滴中的C-3-（H 2 O）（N）（N）和C-3-（D2O）（N）复合物的红外光谱学

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The C-3 molecule is an important species with implications in combustion and astrochemistry, and much of the interest in this molecule is related to its interactions with other species found in these environments. We have utilized helium droplet beam techniques along with a recently developed carbon cluster evaporation source to assemble C-3-(H2O)(n) and C-3-(D2O)(n) complexes with n = 1-2 and to record their rovibrational spectra. We observe only a single isomer of the n = 1 complex, in agreement with theoretical predictions as well as data from earlier matrix isolation studies. The spectra of the n = 1 complex are consistent with the ab initio structure, which involves a nearly linear arrangement of CCC-HO atoms in the complex. The C-3-H2O spectrum we obtain exhibits slight differences from the analogous C-3-D2O spectrum, which we assign to a difference in linewidth between the two spectra. We have also examined the n = 2 species and obtained a structure that appears to be distinct from those observed in matrix isolation studies and, to our knowledge, has not been previously observed.
机译：C-3分子是一种重要的物种，具有燃烧和星式化学的影响，并且对该分子的大部分兴趣与其与这些环境中发现的其他物种的相互作用有关。我们利用氦液体射线技术以及最近开发的碳簇蒸发源来组装C-3-（H2O）（N）和C-3-（D2O）（N）复合物，并记录它们罗维奇光谱。我们仅观察N = 1个复合体的单个异构体，同时与理论预测以及来自早期矩阵隔离研究的数据。 n = 1络合物的光谱与AB初始结构一致，其涉及复合物中CCC-HO原子的几乎线性排列。我们获得的C-3-H2O光谱与类似C-3-D2O谱的略有差异，我们将其分配到两个光谱之间的线宽差异。我们还研究了N = 2种，并获得了似乎与矩阵隔离研究中观察到的结构不同的结构，并且尚未观察到我们的知识。

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