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Bond-length distributions in ionically bonded materials with decomposition by coordination environment

The distributions are analysed of the bond lengths between cations and anions in nitrides, oxides and fluorides for which structural data are available in the Crystallography Open Database (https://www.crystallography.net/cod/). The distributions are decomposed according to analysis of the coordinat...

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Detalles Bibliográficos
Autores principales: Sawada, Motonari, Iwamoto, Ryoga, Kotani, Takao, Sakakibara, Hirofumi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9533746/
https://www.ncbi.nlm.nih.gov/pubmed/36249490
http://dx.doi.org/10.1107/S1600576722006884
Descripción
Sumario:The distributions are analysed of the bond lengths between cations and anions in nitrides, oxides and fluorides for which structural data are available in the Crystallography Open Database (https://www.crystallography.net/cod/). The distributions are decomposed according to analysis of the coordination environments of the cations, which are offered in the tool ChemEnv [Waroquiers, George, Horton, Schenk, Persson, Rignanese, Gonze & Hautier (2020). Acta Cryst. B76, 683–695]. The distributions show how well the concept of ionic radius works. Chemical trends can be observed from the obtained distributions. For example, the bond-length distribution for Sc—O is similar to that for Zr—O. The distributions for Mo—O and V—O show noteworthy similarity. Resources for reproducing all of the results are available at https://github.com/tkotani/CEBond, with additional results for nitrides and fluorides.