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Dalton Transactions

The international journal for inorganic, organometallic and bioinorganic chemistry



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Dalton Trans., 2009, 9849 - 9853, DOI: 10.1039/b912874c

A metal–organic framework via the reaction of benzoate with a cationic inorganic material

Claudia H. Swanson, Steven P. Cummings, Martin Grysell, Dat T. Tran, David L. Rogow, Allen G. Oliver and Scott R. J. Oliver

Our research group previously reported a two-dimensional cationic inorganic material (BING-5, Pb3F5NO3) where nitrate resides in the interlamellar space and can be anion exchanged. Investigation of the possible exchange of nitrate for benzoate led to the discovery of a layered metal–organic framework, lead benzoate hydrate [Pb(C6H5CO2)2(OH2)]. The compound crystallizes as colourless plates in the monoclinic space group P21/c. The two dimensional lead–oxygen layers contain bridging benzoate oxygen atoms, with bridging water molecules further supporting the layers. The benzoate molecules are positioned perpendicular to the layers and form a hydrophobic bilayer region. The material shows basic character when immersed in various solvents suggesting potential as a base catalyst.

Graphical abstract image for this article (ID: b912874c)