Fant M, Ångqvist M, Hellman A, Erhart P. To Every Rule There is an Exception: A Rational Extension of Loewenstein's Rule.
Angew Chem Int Ed Engl 2021;
60:5132-5135. [PMID:
33315307 PMCID:
PMC7986852 DOI:
10.1002/anie.202013256]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/03/2020] [Indexed: 11/07/2022]
Abstract
Loewenstein's rule, which states that Al-O-Al motifs are energetically unstable, is fundamental to the understanding and design of zeolites. Here, using a combination of electronic structure calculations and lattice models, we show under which circumstances this rule becomes invalid and how it can be rationally extended using the chabasite framework for demonstration.
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