Back Cover: Aqueous Sulfate Separation by Sequestration of [(SO4)2(H2O)4]4− Clusters within Highly Insoluble Imine‐Linked Bis‐Guanidinium Crystals (Chem. Eur. J. 6/2016). Issue 6 (18th December 2015)

• Record Type: Journal Article
• Authors: Custelcean, Radu; Williams, Neil J.; Seipp, Charles A.; Ivanov, Alexander S.; Bryantsev, Vyacheslav S.
• Is Part Of: Chemistry. Volume 22:Issue 6(2016)
• Page Start: 2184
• Page End: 2184
• Publication Date: 2015-12-18
• Subjects: anions -- cluster compounds -- crystallization -- guanidines -- self-assembly; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201504886
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract : Quantitative removal of sulfate from seawater was achieved by selective crystallization of the anion with a bis(guanidinium) ligand self‐assembled in situ through imine condensation of simple components. The resulting crystalline salt has an exceptionally low aqueous solubility, on a par with BaSO4 . Single‐crystal X‐ray diffraction analysis revealed pairs of sulfate anions clustered together with four water molecules within the crystals. More information can be found in the Full Paper by R. Custelcean et al. on page 1997 ff.