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Postsynthetic Improvement of the Physical Properties in a Metal–Organic Framework through a Single Crystal to Single Crystal Transmetallation
Author(s) -
Grancha Thais,
FerrandoSoria Jesús,
Zhou HongCai,
Gascon Jorge,
Seoane Beatriz,
Pasán Jorge,
Fabelo Oscar,
Julve Miguel,
Pardo Emilio
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201501691
Subject(s) - transmetalation , single crystal , sorption , chemistry , metal ions in aqueous solution , metal organic framework , metal , crystallography , ion , crystal structure , yield (engineering) , materials science , adsorption , organic chemistry , metallurgy , catalysis
A single crystal to single crystal transmetallation process takes place in the three‐dimensional (3D) metal–organic framework (MOF) of formula Mg II 2 {Mg II 4 [Cu II 2 (Me 3 mpba) 2 ] 3 }⋅45 H 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 II 4 [Cu II 2 (Me 3 mpba) 2 ] 3 }⋅56 H 2 O ( 2 ) and Ni 2 II {Ni II 4 [Cu II 2 (Me 3 mpba) 2 ] 3 }⋅ 54 H 2 O ( 3 ). This unique postsynthetic metal substitution affords materials with higher structural stability leading to enhanced gas sorption and magnetic properties.