On the effective ionic radii for ammonium

被引：128
作者：
Sidey, Vasyl [1 ,2 ]
机构：
[1] Uzhgorod Natl Univ, Dept Chem, Pidgirna St 46, UA-88000 Uzhgorod, Ukraine
[2] Uzhgorod Natl Univ, Res Inst Phys & Chem Solids, Pidgirna St 46, UA-88000 Uzhgorod, Ukraine
来源：
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS | 2016年 / 72卷
关键词：
ammonium; ionic radii; bond valence model; BOND-VALENCE PARAMETERS; LENGTH CORRELATION CURVE; X-RAY-DIFFRACTION; CRYSTAL-STRUCTURE; NEUTRON-DIFFRACTION; THERMAL-EXPANSION; EMPIRICAL-MODEL; VARIANT;
D O I：
10.1107/S2052520616008064
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A set of effective ionic radii corresponding to different coordination numbers (CNs) and compatible with the radii system by Shannon [Acta Cryst. (1976), A32, 751-767] has been derived for ammonium: 1.40 angstrom (CN = IV), 1.48 angstrom (CN = VI), 1.54 angstrom (CN = VIII) and 1.67 angstrom (CN = XII). The bond-valence parameters r(0) = 2.3433 angstrom and B = 0.262 angstrom have been determined for ammonium-fluorine bonds.
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收藏
页码：626 / 633
页数：8
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