A Single H2O Molecule inside Hydrophobic Carbon Nanocavities: Effect of Local Electrostatic Potential
A Single H2O Molecule inside Hydrophobic Carbon Nanocavities: Effect of Local Electrostatic Potential
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DOI：
10.1246/cl.190874
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发表时间：
2020-03-01
影响因子：
1.6
通讯作者：
Murata, Yasujiro
中科院分区：
文献类型：
--
作者：
Hashikawa, Yoshifumi;Murata, Yasujiro
我们研究了基于具有疏水势表面的富勒烯 C-60 的碳纳米腔内单个水分子的旋转动力学和方向。通过改变凹面的疏水性，局部静电势由正变为负。 (HNMR)-H-1 分析揭示了水分子的各向异性旋转行为。此外，还发现水分子角动量的波动发生在亚皮秒时间尺度上，表明其具有类似水蒸气的特征。
We have studied the rotational dynamics and orientation of a single water molecule trapped inside carbon nanocavities based on fullerene C-60 possessing a hydrophobic potential surface. By modifying the hydrophobicity of the concave surface, the local electrostatic potential changed from positive to negative. The (HNMR)-H-1 analyses unveiled the anisotropic rotational behavior of the water molecule. Additionally, the fluctuation in the angular momentum of the water molecule was found to occur on a subpico-second time scale, indicating the vapor-like feature.