Ferroelectrics (FEs) are materials of paramountimportance with a wide diversity of applications.Herein, we propose a postsynthetic methodology for thesmart implementation of ferroelectricity in chiralmetal−organic frameworks (MOFs): following a singlecrystalto single-crystal cation metathesis, the Ca2+counterions of a preformed chiral MOF of formulaCa6II{CuII24[(S,S)-hismox]12(OH2)3}·212H2O (1), wherehismox is a chiral ligand derived from the natural aminoacid L-histidine, are replaced by CH3NH3+. The resultingcompound, (CH3NH3)12{CuII24[(S,S)-hismox]12(OH2)3}·178H2O (2), retains the polar space group of 1 and isferroelectric below 260 K. These results open a newsynthetic avenue to enlarge the limited number of FEMOFs.

Postsynthetic Approach for the Rational Design of Chiral Ferroelectric Metal−Organic Frameworks

VERSACE, Consolato Carlo;Bruno R;ARMENTANO, Donatella
;
2017-01-01

Abstract

Ferroelectrics (FEs) are materials of paramountimportance with a wide diversity of applications.Herein, we propose a postsynthetic methodology for thesmart implementation of ferroelectricity in chiralmetal−organic frameworks (MOFs): following a singlecrystalto single-crystal cation metathesis, the Ca2+counterions of a preformed chiral MOF of formulaCa6II{CuII24[(S,S)-hismox]12(OH2)3}·212H2O (1), wherehismox is a chiral ligand derived from the natural aminoacid L-histidine, are replaced by CH3NH3+. The resultingcompound, (CH3NH3)12{CuII24[(S,S)-hismox]12(OH2)3}·178H2O (2), retains the polar space group of 1 and isferroelectric below 260 K. These results open a newsynthetic avenue to enlarge the limited number of FEMOFs.
2017
Ferroelettricity; MOF
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Descrizione: This document is the Accepted Manuscript version of a Published Work that appeared in final form in JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Copyright © 2017 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see ACS Articles on Request at: https://pubs.acs.org/page/4authors/benefits/index.html#articles-request]. Published version is available at: https://pubs.acs.org/toc/jacsat/139/24
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/132486
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