Neutron diffraction study on the hydration structure of carbonate ion by means of 12C/13C isotopic substitution method

被引：17

作者：

Kameda, Yasuo ^{[1
]}

Sasaki, Motoya ^{[1
]}

Hino, Shuji ^{[1
]}

Amo, Yuko ^{[1
]}

Usuki, Takeshi ^{[1
]}

机构：

[1] Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 385卷

关键词：

neutron diffraction; isotopic substitution; carbonate ion; hydration structure;

D O I：

10.1016/j.physb.2006.05.067

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Time-of-flight (TOF) neutron diffraction measurements were carried out for C-12/C-13 isotopically substituted aqueous 10 mol% K2CO3 solutions in D2O in order to obtain structural information on the hydration structure of CO32-. Structural parameters concerning water molecules in the first hydration shell of CO32- were determined through the least-squares fitting analysis of the observed intermolecular difference function, Delta(inter)(C)(Q). It has been revealed that the first hydration shell of CO32- consists of 9.1(5) water molecules with the intermolecular C(CO32-)center dot center dot center dot D-WI(D2O) distance of 2.68(1)angstrom. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：279 / 281

页数：3

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