0000000000680864
AUTHOR
Triyanti
Anion Receptors Based on a Quinoline Backbone
2-Amido-8-urea substituted quinoline derivatives are potent receptors for the binding of halide or benzoate anions in chloroform. The selectivity and affinity of the receptors for fluoride can be tuned by variation of the substituents at the receptor side chains. Computational considerations show that the cleft of the receptors provides space for effective binding of F–, but not bigger anions.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
The Halide Binding Behavior of 2-Carbamoyl-7-ureido-1H-indoles: Conformational Aspects
Indole-based anion receptors with an carboxamide unit in 2- and an urea in 7-position were prepared and found to bind halides (as well as acetate and nitrate) in chloroform solutions at room temperature. Investigations of the binding behaviour show that the receptor is selective for chloride. Surprisingly, the truncated receptor 3 without the 2-carbamoyl substituent shows the highest affinity for Cl–. Thorough 1H, 13C and 15N NMR investigations indicate different binding modes for acetate, nitrate and halides to the receptor 2. The observation of a major conformational change of this receptor during the binding of the halide ions leads to an understanding of the relative binding affinities …
CCDC 633848: Experimental Crystal Structure Determination
Related Article: M.Albrecht, Triyanti, S.Schiffers, O.Osetska, G.Raabe, T.Wieland, L.Russo, K.Rissanen|2007|Eur.J.Org.Chem.|2007|2850|doi:10.1002/ejoc.200700130
CCDC 633847: Experimental Crystal Structure Determination
Related Article: M.Albrecht, Triyanti, S.Schiffers, O.Osetska, G.Raabe, T.Wieland, L.Russo, K.Rissanen|2007|Eur.J.Org.Chem.|2007|2850|doi:10.1002/ejoc.200700130
CCDC 633849: Experimental Crystal Structure Determination
Related Article: M.Albrecht, Triyanti, S.Schiffers, O.Osetska, G.Raabe, T.Wieland, L.Russo, K.Rissanen|2007|Eur.J.Org.Chem.|2007|2850|doi:10.1002/ejoc.200700130
CCDC 729713: Experimental Crystal Structure Determination
Related Article: D.Makuc, Triyanti, M.Albrecht, J.Plavec, K.Rissanen, A.Valkonen, C.A.Schalley|2009|Eur.J.Org.Chem.|2009|4854|doi:10.1002/ejoc.200900721