Anion binding with biphenyl-bis-urea derivatives: solution and solid-state studies. (17th September 2020)

• Record Type: Journal Article
• Authors: Grgurić, Toni; Cetina, Mario; Petroselli, Manuel; Bacchiocchi, Corrado; Dzolić, Zoran; Cametti, Massimo
• Is Part Of: New journal of chemistry. Volume 44:Number 38(2020)
• Page Start: 16294
• Page End: 16301
• Publication Date: 2020-09-17
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj03670f
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Bis-urea derivatives 1–3, featuring a biphenyl spacer, were synthesized, characterized and investigated about their anion binding properties in DMSO solution and in the solid state. Abstract : In this work, we have synthesized and characterized bis-urea derivatives 1–3, featuring a biphenyl spacer, and studied their anion binding properties in DMSO solution and in the solid state. In solution, 1 : 1 complexes were observed with association constant K values in the 10 3 –10 4 M −1 range with a general preference for acetate over dihydrogenphosphate for all three receptors. We were also able to obtain and characterize, by X-ray diffraction on single crystals, ten receptor–anion complexes including acetate and dihydrogenphosphate, as well as monohydrogenphosphate, halides and the nitrate ion. Linear (anion–receptor) n arrays, porous frameworks and non-centrosymmetric structures were observed and described in detail.