K0.72Na1.71Ca5.79Si6O19 – the first oligosilicate based on [Si6O19]-hexamers and its stability compared to cyclo­silicates

Kahlenberg, V.; Krüger, H.; Garber, S.; Krüger, B.; Libowitzky, E.; Kröll, S.; Hofer, T.S.; Gallmetzer, J.M.; Purtscher, F.R.S.

doi:10.1107/S2052520624007352

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 10
(a) Comparison of the molecular electronegativities between the oligosilicate and the cyclosilicate with full Na and K occupancies using optimized and non-optimized idealized experimental structures. (b) Element density (numbers of elements per nm³) versus molecular electronegativity between the geometry-optimized cyclo- and oligosilicate with Na/K occupation.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 80| Part 5| October 2024|

https://doi.org/10.1107/S2052520624007352

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