Postsynthetic Improvement of the Physical Properties in a Metal-Organic Framework through a Single-Crystal to Single-Crystal Transmetallation

by T. Grancha, J. Ferrando-Soria, H.-C. Zhou, J. Gascon, B. Seoane, J. Pasan, O. Fabelo, M. Julve, E. Pardo
Year: 2015 ISSN: DOI: 10.1002/anie.201501691

Bibliography

T. Grancha, J. Ferrando-Soria, H.-C. Zhou, J. Gascon, B. Seoane, J. Pasan, O. Fabelo, M. Julve, E. Pardo, Angew. Chemie Int. Ed. 127 (2015) 6621-6625, Postsynthetic Improvement of the Physical Properties in a Metal-Organic Framework through a Single-Crystal to Single-Crystal Transmetallation

Abstract

​A single crystal to single crystal transmetallation process takes place in the three-dimensional (3D) metal–organic framework (MOF) of formula MgII2{MgII4[CuII2(Me3mpba)2]3}⋅45 H2O (1; Me3mpba4−=N,N′-2,4,6-trimethyl-1,3-phenylenebis(oxamate)). After complete replacement of the MgII ions within the coordination network and those hosted in the channels by either CoII or NiII ions, 1 is transmetallated to yield two novel MOFs of formulae Co2II{CoII4[CuII2(Me3mpba)2]3}⋅56 H2O (2) and Ni2II{NiII4[CuII2(Me3mpba)2]3}⋅ 54 H2O (3). This unique postsynthetic metal substitution affords materials with higher structural stability leading to enhanced gas sorption and magnetic properties.

Keywords

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