Structures and solid-state dynamics of one-dimensional water chains stabilized by imidazole channels

被引:176
作者
Cheruzel, LE [1 ]
Pometun, MS [1 ]
Cecil, MR [1 ]
Mashuta, MS [1 ]
Wittebort, RJ [1 ]
Buchanan, RM [1 ]
机构
[1] Univ Louisville, Dept Chem, Louisville, KY 40292 USA
关键词
calorimetry; NMR spectroscopy; proton transport; solid-state structures;
D O I
10.1002/anie.200352157
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Proton wires: One-dimensional water chains play an important role in proton permeation through transmembrane proteins. The X-ray crystal structures as well as solid-state 2H and 17O NMR and calorimetry studies of two imidazole hydrates that stabilize infinite one-dimensional water chains are reported (see picture; N blue, O red, H white). The 2H NMR spectroscopic studies suggest that water molecules in both compounds undergo different reorientational dynamics.
引用
收藏
页码:5452 / 5455
页数:4
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