Squaramide-based tripodal receptors for selective recognition of sulfate anion

Can Jin; Man Zhang; Lin Wu; Yangfan Guan; Yi Pan; Juli Jiang; Chen Lin; Leyong Wang

doi:10.1039/C3CC00196B

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Chemical Communications

Issue 20, 2013

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Squaramide-based tripodal receptors for selective recognition of sulfate anion

Can Jin,^a Man Zhang,^a Lin Wu,^a Yangfan Guan,^a Yi Pan,^a Juli Jiang,*^a Chen Lin*^a and Leyong Wang^a

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Corresponding authors

Center for Multimolecular Chemistry, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
E-mail: jjl@nju.edu.cn ;
Fax: +86 025 83317761

Chem. Commun., 2013,49, 2025-2027

DOI: 10.1039/C3CC00196B
Received 22 Nov 2012, Accepted 18 Jan 2013
First published online 24 Jan 2013

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Squaramide-based tripodal anion receptors 1–3 have been prepared and their anion binding properties with various inorganic anions were investigated. Receptor 1 formed a dimeric complex in solid state and a 1:1 complex in solution with SO₄²⁻. All receptors 1–3 could selectively encapsulate SO₄²⁻via hydrogen bonds over other examined anions.