Aqueous Sulfate Separation by Sequestration of [(SO4)2(H2O)4]4 Clusters within Highly Insoluble Imine-Linked Bis-Guanidinium Crystals
Journal Article
·
· Chemistry - A European Journal (Online)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1235002
- Journal Information:
- Chemistry - A European Journal (Online), Vol. 21; ISSN 1521-3765
- Publisher:
- ChemPubSoc Europe
- Country of Publication:
- United States
- Language:
- English
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