Temporal evolution of an ultrathin, noncrystalline ice deposit at crystallization near 160 K studied by FT-IR reflection-absorption spectroscopy
Temporal evolution of an ultrathin, noncrystalline ice deposit at crystallization near 160 K studied by FT-IR reflection-absorption spectroscopy
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通过 FT-IR 反射吸收光谱研究近 160 K 结晶温度下超薄非晶冰沉积物的时间演化
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
K. Leung
中科院分区：
文献类型：
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作者：
S. Mitlin;K. Leung
通过 FT-IR 反射吸收光谱研究了非晶冰沉积物退火后在 160 K 附近结晶时 OH 拉伸模式的时间演化。利用 Whalley (E. Whalley. Can. J. Chem. 55, 3429 (1977)) 和 Buch 和 Devlin (V. Buch and J.P. Devlin. J. Chem. Phys. 110, 3437 (1999)) 的早期理论结果，首次描述了这些模式中最显着的变化。结晶过程中结构转变的动态图已经被开发出来，它支持这样的观察：结晶直接从非晶态到晶态，没有任何结构上不同于其非晶态前体的长寿命中间态。
The temporal evolution of the OH stretching modes of a noncrystalline ice deposit upon annealing followed by crystallization near 160 K has been investigated by FT-IR reflection-absorption spectroscopy. Using the earlier theo- retical results from Whalley (E. Whalley. Can. J. Chem. 55, 3429 (1977)) and from Buch and Devlin (V. Buch and J.P. Devlin. J. Chem. Phys. 110, 3437 (1999)), the most prominent changes in these modes have been characterized for the first time. A dynamical picture of the structural transformation during crystallization has been developed, and it sup- ports the observation that crystallization proceeds directly from a noncrystalline to a crystalline state without any long- lived intermediate state structurally different from its noncrystalline predecessor.