SPIN-LATTICE RELAXATION OF (H2O)-H-2 AT AMPHIPHILE WATER INTERFACES AS SEEN BY NMR

被引：6

作者：

EISENBLATTER, S ^{[1
]}

GALLE, J ^{[1
]}

VOLKE, F ^{[1
]}

机构：

[1] UNIV LEIPZIG,DEPT PHYS,D-04103 LEIPZIG,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 228卷 / 1-3期

关键词：

D O I：

10.1016/0009-2614(94)00901-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple two-state model is proposed describing the mean spin-lattice relaxation time T-1 of (H2O)-H-2 at amphiphile/water interfaces. The dependence of the relaxation times on hydration is fitted for (H2O)-H-2/DOPC, (H2O)-H-2/POPC and (H2O)-H-2/C(12)E(4) samples. Estimations of effective binding energies of water are obtained from the model being in the range of known values determined by quantum chemical calculations and sorption measurements. Therefore, spin-lattice relaxation time measurements on interface water may prove a tool for characterizing the surface energy conditions in a variety of amphiphile/water systems.

引用

页码：89 / 93

页数：5

共 24 条

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