Aqueous Sulfate Separation by Crystallization of Sulfate–Water Clusters. (7th August 2015)

• Record Type: Journal Article
• Authors: Custelcean, Radu; Williams, Neil J.; Seipp, Charles A.
• Is Part Of: Angewandte Chemie. Volume 127:Number 36(2015)
• Page Start: 10671
• Page End: 10675
• Publication Date: 2015-08-07
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201506314
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>An effective approach to sulfate separation from aqueous solutions is based on the crystallization of extended [SO₄(H₂O)₅²⁻]_{<italic>n</italic>} sulfate–water clusters with a bis(guanidinium) ligand. The ligand was generated in situ by hydrazone condensation in water, thereby bypassing the need for elaborate syntheses, tedious purifications, and organic solvents. Crystallization of sulfate–water clusters represents an alternative approach to the now established sulfate separation strategies that involve encapsulation of the "naked" anion.</p> </abstract>