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RESEARCH PRODUCT
Postsynthetic Approach for the Rational Design of Chiral Ferroelectric Metal–Organic Frameworks
Emilio PardoMichel VerdaguerCharles PaillardDonatella ArmentanoRosaria BrunoMarta MonBrahim DkhilCyrille TrainCarlo VersaceJesús Ferrando-soriasubject
chemistry.chemical_classificationStereochemistryChiral ligandRational design02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyMetathesis01 natural sciencesBiochemistryFerroelectricityCatalysis0104 chemical sciencesCrystallographyColloid and Surface Chemistrychemistry[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Metal-organic frameworkCounterion0210 nano-technologydescription
International audience; Ferroelectrics (FEs) are materials of paramount importance with a wide diversity of applications. Herein, we propose a postsynthetic methodology for the smart implementation of ferroelectricity in chiral metal−organic frameworks (MOFs): following a single-crystal to single-crystal cation metathesis, the Ca2+ counterions of a preformed chiral MOF of formula Ca6II{CuII24[(S,S)-hismox]12(OH2)3}·212H2O (1), where hismox is a chiral ligand derived from the natural amino acid l-histidine, are replaced by CH3NH3+. The resulting compound, (CH3NH3)12{CuII24[(S,S)-hismox]12(OH2)3}·178H2O (2), retains the polar space group of 1 and is ferroelectric below 260 K. These results open a new synthetic avenue to enlarge the limited number of FE MOFs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-06 |