Topological studies of three related metal-organic frameworks of Gd III and 5-nitroisophthalate

Davies, Kate; Bourne, Susan A; Öhrström, Lars; Oliver, Clive L

Topological studies of three related metal-organic frameworks of Gd III and 5-nitroisophthalate

Journal Article

2012

Journal Title

Acta Crystallographica. Section B - Structural Science

Link to Journal

https://dx.doi.org/10.1107/S0108768112032053

Department

Department of Chemistry

Faculty

Faculty of Science

Abstract

The reaction of 5-nitroisophthalic acid (H(2)NIA) with Gd(NO(3))(3)·6H(2)O in DMF afforded three new metal-organic frameworks: [Gd(NIA)(1.5)(DMF)(2)]·DMF (I), [Gd(2)(NIA)(3)(DMF)(4)]·xH(2)O (II) and [Gd(4)(NIA)(6)(DMF)(5.5)(H(2)O)(3)]·4DMF·H(2)O (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 (4(12).6(3))-pcu topology, while (II) displays a (4(2).8(4))(4(2).8(4))-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 (4(4).6(2))(4(6).6(4))(2)(4(8).6(6).8).