Polymeric structures in the metal complexes of 5-sulfosalicylic acid: The rubidium(I), caesium(I) and lead(II) analogues
(2007) Polymeric structures in the metal complexes of 5-sulfosalicylic acid: The rubidium(I), caesium(I) and lead(II) analogues. Polyhedron 26(14):pp. 3645-3652.
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Abstract
The complexes of 3-carboxy-4-hydroxybenzenesulfonic acid (5-sulfosalicylic acid, H3SSSA) with rubidium(I), caesium(I) and lead(II) have been synthesized and characterized using single crystal X-ray methods at 130 K. The rubidium(I) complex 1, [Rb3(H2SSA)(HSSA)(H2O)4]n, is an unstable hydrate variant of a previously described complex [Rb(H2SSA)(H2O]n, and comprises three independent and different seven-coordinate metal polyhedra interlinked through oxygen donors of the sulfonate, carboxylate and phenolate groups of the 5-sulfosalicylate ligands (one of which is dianionic, the other monoanionic), and one bridging water, giving a three-dimensional hydrogen-bonded framework polymer structure. The anhydrous caesium(I) complex 2 [Cs(H2SSA)]n, which has breen previously described in a room-temperature determination, has a three-dimensional framework polymer structure based on an irregular Cs-O9 repeating unit. Complex 3 with lead(II), [Pb(H2SSA)2(H2O)]n, forms helical step-polymer ribbon sub-structures having an irregular Pb-O7 coordination centre comprising a single monodentate water and six sulfonate-O donors bridging three separate metals. The carboxylic acid and phenol substituent groups of the 5-sulfosalicylate ligand link the ribbons peripherally through hydrogen bonds, giving a three-dimensional layered polymer structure.
| Item Type: | Journal Article |
|---|---|
| Status: | Published |
| Keywords: | 5-sulfosalicylic acid; rubidium(I); caesium(I); lead(II); crystal structures; coordination polymers |
| Subjects: | 250000 Chemical Sciences > 250100 Physical Chemistry (incl. Structural) > 250105 Structural Chemistry |
| ID Code: | 9104 |
| Deposited By: | Smith, Graham |
| Deposited On: | 21 August 2007 |
| Alternative Locations: | http://dx.doi.org/10.1016/j.poly.2007.03.044 |
| Copyright Owner: | Copyright 2007 Elsevier |
| Additional Information: | For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: g.smith@qut.edu.au |