On the effective ionic radii for ammonium

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 Å (CN = IV), 1.48 Å (CN = VI), 1.54 Å (CN = VIII) and 1.67 Å (CN = XII). The bond-valence parame...

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Bibliographic Details
Published inActa crystallographica Section B, Structural science, crystal engineering and materials Vol. 72; no. Pt 4; p. 626
Main Author Sidey, Vasyl
Format Journal Article
LanguageEnglish
Published England 01.08.2016
Subjects
ammonium
bond valence model
ionic radii
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Summary: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 Å (CN = IV), 1.48 Å (CN = VI), 1.54 Å (CN = VIII) and 1.67 Å (CN = XII). The bond-valence parameters r0 = 2.3433 Å and B = 0.262 Å have been determined for ammonium-fluorine bonds.
ISSN:2052-5206
DOI:10.1107/s2052520616008064