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Contents Vol 65(7)

Two-Dimensional Coordination Polymers in Rubidium and Caesium Complexes with Orthanilic Acid

Graham Smith
+ Author Affiliations
- Author Affiliations

Science and Engineering Faculty, Queensland University of Technology, Brisbane, Qld 4001, Australia. Email: g.smith@qut.edu.au

Australian Journal of Chemistry 65(7) 750-754 https://doi.org/10.1071/CH11503
Submitted: 23 December 2011  Accepted: 9 January 2012   Published: 29 February 2012

Abstract

The crystal structures of the rubidium and caesium complexes with 2-aminobenzenesulfonic acid (orthanilic acid), [Rb4(C6H6NO3S)4(H2O)]n(1) and [Cs(C6H6NO3S)]n(2), have been determined at 200 K. Complex 1 has a repeating unit comprising four independent and different Rb coordination centres, (RbO8), (RbO7), (RbN2O4) and (RbO10), each having irregular stereochemistry and involving several bidentate chelate sulfonate-O,O′-metal and bridging interactions, giving a two-dimensional polymeric layered structure. Anhydrous complex 2 is also polymeric with the irregular (CsO7) coordination polyhedron comprising six sulfonate oxygen donors from three separate bidentate chelate sulfonate ligands and one monodentate bridging sulfonate oxygen, giving a two-dimensional layered structure.


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