The structure of the ice Ih by neutron diffraction

The structure of the ice Ih by neutron diffraction
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DOI:
10.1021/j100244a063
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发表时间:
1983-10
期刊:
The Journal of Physical Chemistry
影响因子:
--
通讯作者:
W. Kuhs;M. Lehmann
W. Kuhs;M. Lehmann
中科院分区:
其他
文献类型:
--
作者:
W. Kuhs;M. Lehmann

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冰 Ih(六方冰)的高分辨率中子衍射研究已在 60、123 和 223 K 下进行。先前研究中发现的分子几何结构已得到证实,O-H 长度为 1.01 A,H-O-H 角为 109.5/sup 0/。热运动遵循谐振子行为。氢键中间的散射密度表明氢原子运动延伸超出了氧-氧键的中点。 1图,2表。
High-resolution neutron diffraction studies of ice Ih (hexagonal ice) have been done at 60, 123, and 223 K. The molecular geometry found in previous studies is confirmed with an O-H length of 1.01 A and an H-O-H angle of 109.5/sup 0/. The thermal motion follows a harmonic oscillator behavior. The scattering density in the middle of the hydrogen bond indicates that the hydrogen atom motion extends beyond the midpoint of the oxygen-oxygen bond. 1 figure, 2 tables.