Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 14, Issue 33, Pages 10236-10243Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200801639
Keywords
anions; indoles; phosphate; structure elucidation; ureas
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Funding
- Regione Sardegna
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1,3-Diindolylureas and thioureas have been synthesised and their anion complexation properties in solution studied. Whilst diindolylthioureas showed only moderate afinities and selectivities, diindolyureas show remarkably high affinity for dihydrogen phosphate in solution for an acyclic, neural receptor in water/[D-6]DMSO mixtures. These easy-to-make compounds adopt relatively planar conformations in the solid-state and are able to donate four hydrogen bonds and yet not fill the coordination sphere of carbonate or phosphate, allowing two or three receptors to bind to each anion in the solid-state.
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