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Transition‐Metal Dependent Cation Disorder in the Chiral Cubic AB (HCO 2 ) 3 Metal‐Organic Frameworks ( A = Li or Na, B = Mn or Co)
Author(s) -
Aston James C.,
Saines Paul J.
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600350
Subject(s) - isostructural , antiferromagnetism , alkali metal , paramagnetism , crystallography , transition metal , chemistry , metal , crystal structure , cubic crystal system , phase (matter) , inorganic chemistry , materials science , condensed matter physics , physics , organic chemistry , catalysis
This study examines the crystal structures of the AB (HCO 2 ) 3 ( A = Li or Na and B = Mn or Co) metal‐organic frameworks, which we find to adopt a chiral cubic P 2 1 3 structure. This shows that the Li containing formates are isostructural with their Na analogues, extending the phase stability of this chiral architecture. The Mn containing compounds have a magnetic sublattice similar to β‐Mn, long of interest due to its highly frustrated antiferromagnetic coupling. In contrast the Co formates appear to have partially disordered alkali and transition metal cations, which prevents the formation of a clean β‐Mn‐like magnetic sublattice. We have also re‐examined the magnetic properties of NaMn(HCO 2 ) 3 finding it to be a simple paramagnet down to 2 K with only weak antiferromagnetic coupling.