Solution and Solid-State Studies on the Halide Binding Affinity of Perfluorophenyl-Armed Uranyl-Salophen Receptors Enhanced by Anion-π Interactions

Luca Leoni; Rakesh Puttreddy; Ondřej Jurček; Andrea Mele; Ilaria Giannicchi; Francesco Yafteh Mihan; Kari Rissanen; Antonella Dalla Cort

doi:10.1002/chem.201604313

Solution and Solid-State Studies on the Halide Binding Affinity of Perfluorophenyl-Armed Uranyl-Salophen Receptors Enhanced by Anion-π Interactions

Chemistry. 2016 Dec 23;22(52):18714-18717. doi: 10.1002/chem.201604313. Epub 2016 Nov 16.

Authors

Luca Leoni¹, Rakesh Puttreddy², Ondřej Jurček², Andrea Mele¹, Ilaria Giannicchi¹, Francesco Yafteh Mihan¹, Kari Rissanen², Antonella Dalla Cort¹

Affiliations

¹ Dipartimento di Chimica and IMC-CNR, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Roma, Italy.
² University of Jyväskylä, Department of Chemistry, Nanoscience Center, P.O. Box 35, 40014, University of Jyväskylä, Finland.

PMID: 27758008
DOI: 10.1002/chem.201604313

Abstract

The enhancement of the binding between halide anions and a Lewis acidic uranyl-salophen receptor has been achieved by the introduction of pendant electron-deficient arene units into the receptor skeleton. The association and the occurrence of the elusive anion-π interaction with halide anions (as tetrabutylammonium salts) have been demonstrated in solution and in the solid state, providing unambiguous evidence on the interplay of the concerted interactions responsible for the anion binding.

Keywords: Lewis acid-base interactions; anion-π interactions; halides; host-guest systems; uranyl-salophen.