Literature DB >> 27484382

On the effective ionic radii for ammonium.

Vasyl Sidey1.   

Abstract

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.

Entities:  

Keywords:  ammonium; bond valence model; ionic radii

Year:  2016        PMID： 27484382     DOI： 10.1107/S2052520616008064

Source DB:  PubMed          Journal:  Acta Crystallogr B Struct Sci Cryst Eng Mater        ISSN： 2052-5192


  5 in total

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4.  Structure refinement of (NH4)3Al2(PO4)3 prepared by ionothermal synthesis in phospho-nium based ionic liquids - a redetermination.

Authors:  Christopher P Nicholas; John P S Mowat; Robert W Broach
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2019-11-19

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Authors:  Daniil A Kozlov; Alexander B Shcherbakov; Taisiya O Kozlova; Borislav Angelov; Gennady P Kopitsa; Alexey V Garshev; Alexander E Baranchikov; Olga S Ivanova; Vladimir K Ivanov
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  5 in total

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