期刊
PHASE TRANSITIONS
卷 81, 期 10, 页码 907-934出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01411590802098864
关键词
pressure; hydrogen bond; symmetrization; correlations; H center dot center dot center dot H repulsion
The hydrogen bonds are quite pervasive in several classes of materials. Its parameters are known to show systematic variations with hydrogen bond length, and pressure variable is thus a natural way for studying hydrogen bonded substances. In this article, we review the unifying features as obtained through several experimental and theoretical investigations. Amongst other things, it is examined whether the observed pressure-induced variations in parameters of hydrogen bonds are consistent with the co-relations known on different chemical substances at normal pressure. In particular, the controversies on variations of O-H and H center dot center dot center dot O pairs with pressure and symmetrization of hydrogen bond have been resolved. The effects of close packing promoted by pressure such as formation of muli-centered hydrogen bonds and steric repulsions and the way the hydrogen bonds counter these in different ways are also examined.
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