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Three new crystal structures in the Na–Pb system: solving structures without additional experimental input
Author(s) -
Ward Logan,
Michel Kyle,
Wolverton Chris
Publication year - 2015
Publication title -
acta crystallographica section a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.742
H-Index - 83
ISSN - 2053-2733
DOI - 10.1107/s2053273315012516
Subject(s) - crystal structure , lattice (music) , space (punctuation) , crystallography , materials science , computer science , algorithm , chemistry , physics , acoustics , operating system
The structures of three Na–Pb compounds, γ, δ and δ′, have remained incompletely solved for nearly 60 years. The space group, lattice parameters and positions of the Pb atoms of these three structures have been determined, but the positions of the Na atoms are still unknown. In this work, the First‐Principles Assisted Structure Solution (FPASS) method [Meredig & Wolverton (2013). Nat. Mater. 12 , 123–127] has been used to complete the description of these three structures using only experimental information available from the literature as input. The paper also discusses the relative advantages of constrained crystal structure prediction tools, like FPASS, in comparison to conventional crystal structure prediction methods in reference to their abilities to complete the solution of other unsolved structures.