Journal article
A New Structural Family of Gas-Sorbing Coordination Polymers Derived from Phenolic Carboxylic Acids
KF White, BF Abrahams, R Babarao, AD Dharma, TA Hudson, HE Maynard-Casely, R Robson
Chemistry A European Journal | Published : 2015
Abstract
The structure of Li(inox)2/3 DMF (inox-=the N-oxide of the isonicotinate anion) consists of a 3D framework with solvent-filled, square cross-section channels of approximate dimensions 5.5×5.5Å. Unfortunately, the Li(inox) framework is unstable upon removal of DMF from the channels. When the structurally related 4-hydroxybenzoic acid (H2hba) was used in place of Hinox, and Zn2+ in place of the Li+, a structurally similar but more robust network, Zn(hba), was obtained; the isostructural compound, Co(hba), may also be prepared. Longer ligands with phenolate and carboxylate functional groups at opposite ends, such as the dianions of 4-coumaric acid (H2cma) and 4′-hydroxy-4-biphenylcarboxylic aci..
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Funding Acknowledgements
The authors gratefully acknowledge the support of the Australian Research Council. This research is supported by the Science and Industry Endowment Fund. Part of this research was undertaken on the Macromolecular Crystallography (MX1) and powder diffraction beamlines at the Australian Synchrotron, Victoria, Australia. R.B. acknowledges the computational facilities and services provided through the CSIRO Advanced Scientific Computing and the National Computing Infrastructure (NCI).