Exploiting 1,4-naphthoquinone and 3-iodo-1,4-naphthoquinone motifs as anion binding sites by hydrogen or halogen-bonding interactions
We describe here the utilization of 1,4-naphthoquinone and 3-iodo-1,4-naphthoquinone motifs as new anion binding sites by hydrogen- or halogen-bonding interactions, respectively. These binding sites have been integrated in bidentate ester based receptors. Emission experiments reveal that both receptors selectively recognize sulfate anions, which induced a remarkable increase of a new emission band attributed to the formation of π-stacking interactions between two 1,4-naphthoquinone units. Absorption spectroscopy and mass spectrometry indicate the disruption of the ester group of the 1,4-naphthoquinone based receptor in the presence of HP2O73−, H2PO4−, F−, AcO− and C6H5CO2− and in the haloge…
CCDC 1915911: Experimental Crystal Structure Determination
Related Article: Encarnación Navarro-García, María D. Velasco, Fabiola Zapata, Antonio Bauzá, Antonio Frontera, Carmen Ramírez de Arellano, Antonio Caballero|2019|Dalton Trans.|48|11813|doi:10.1039/C9DT02012H
CCDC 1915912: Experimental Crystal Structure Determination
Related Article: Encarnación Navarro-García, María D. Velasco, Fabiola Zapata, Antonio Bauzá, Antonio Frontera, Carmen Ramírez de Arellano, Antonio Caballero|2019|Dalton Trans.|48|11813|doi:10.1039/C9DT02012H