Topological studies of three related metal‐organic frameworks of GdIII and 5‐nitroisophthalate
The reaction of 5‐nitroisophthalic acid (H2NIA) with Gd(NO3)3·6H2O in DMF afforded three new metal‐organic frameworks: [Gd(NIA)1.5(DMF)2]·DMF (I), [Gd2(NIA)3(DMF)4]·xH2O (II) and [Gd4(NIA)6(DMF)5.5(H2O)3]·4DMF·H2O (III). These compounds can be prepared through a variety of methods. Compounds (I) and (II) are more reproducibly formed than compound (III). Network analysis revealed (I) to have a (412.63)‐pcu topology, while (II) displays a (42.84)(42.84)‐pts topology. Compound (III) was found to present the uncommon 4,5,6T11 topological net, which combines aspects of both the pcu and pts topologies. The short symbol of this net is (44.62)(46.64)2(48.66.8).
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Document Type: Research Article
Publication date: 2012-10-01