What is it about?

This article presents the effective ionic radii derived for ammonium in accordance with the Shannon [Acta Cryst. (1976), A32, 751–767] approaches.

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Why is it important?

Despite the importance of the ammonium cation in chemistry and materials science, the effective ionic radii for ammonium were not reported by Shannon [Acta Cryst. (1976), A32, 751–767] and remained unavailable over four decades; this article finally solves the above problem.

Perspectives

The ammonium radii are ready for use in crystal structure investigations, along with other Shannon's radii.

Dr Vasyl Sidey
Uzhgorod National University

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This page is a summary of: On the effective ionic radii for ammonium, Acta Crystallographica Section B Structural Science Crystal Engineering and Materials, August 2016, International Union of Crystallography,
DOI: 10.1107/s2052520616008064.
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