Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 22, Pages 6521-6525Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201501691
Keywords
gas sorption; magnetic properties; metal-organic frameworks; transmetalation; X-ray diffraction
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Funding
- MINECO (Spain) [CTQ2013-46362-P, CTQ2013-44844-P]
- Generalitat Valenciana (Spain) [PROMETEOII/2014/070]
- European Research Council under the European Union [335746]
- Universitat de Valencia
- European Research Council (ERC) [335746] Funding Source: European Research Council (ERC)
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A single crystal to single crystal transmetallation process takes place in the three-dimensional (3D) metal-organic framework (MOF) of formula Mg-2(II){Mg-4(II)[Cu-2(II)(Me(3)mpba)(2)](3)}45H(2)O (1; Me(3)mpba(4-)=N,N-2,4,6-trimethyl-1,3-phenylenebis(oxamate)). After complete replacement of the Mg-II ions within the coordination network and those hosted in the channels by either Co-II or Ni-II ions, 1 is transmetallated to yield two novel MOFs of formulae Co-2(II){Co-4(II)[Cu-2(II)(Me(3)mpba)(2)](3)}56H(2)O (2) and Ni-2(II){Ni-4(II)[Cu-2(II)(Me(3)mpba)(2)](3)} 54H(2)O (3). This unique postsynthetic metal substitution affords materials with higher structural stability leading to enhanced gas sorption and magnetic properties.
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