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Title: Aqueous sulfate separation by crystallization of sulfate–water clusters

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Texas at Austin, Austin, TX (United States)

An effective approach to separating sulfates from aqueous solutions is based on the crystallization of extended [SO4(H2O) 52-]n sulfate–water clusters with a bis(guanidinium) ligand. The ligand was generated in situ by hydrazone condensation in water, thus avoiding elaborate syntheses, tedious purifications, and organic solvents. Crystallization of sulfate–water clusters represents an alternative to the now established sulfate separation strategies that involve encapsulating the “naked” anion.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1213344
Journal Information:
Angewandte Chemie (International Edition), Vol. 54, Issue 36; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

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Cited By (17)

Anions Stabilize Each Other inside Macrocyclic Hosts journal October 2016
CO 2 Capture from Ambient Air by Crystallization with a Guanidine Sorbent journal December 2016
Aqueous Sulfate Separation by Sequestration of [(SO 4 ) 2 (H 2 O) 4 ] 4− Clusters within Highly Insoluble Imine-Linked Bis-Guanidinium Crystals journal December 2015
Molecular Tectonics: A Node‐and‐Linker Building Block Approach to a Family of Hydrogen‐Bonded Frameworks journal July 2019
Efficient and selective separation of aqueous sulfate through recognition and precipitation journal January 2017
Selective separation of aqueous sulphate anions via crystallization of sulphate–water clusters journal January 2017
Substituent swap affects the crystal structure and properties of N-benzyl-4-amino-1,2,4-triazole related organic salts journal January 2017
Supramolecular anion recognition in water: synthesis of hydrogen-bonded supramolecular frameworks journal January 2017
Efficient stabilisation of a dihydrogenphosphate tetramer and a dihydrogenpyrophosphate dimer by a cyclic pseudopeptide containing 1,4-disubstituted 1,2,3-triazole moieties journal January 2017
Selective binding of (thio)sulfate and phosphate in water by quaternary ammonium functionalized oligo-ureas journal January 2019
Recent advances in self-assembled amidinium and guanidinium frameworks journal January 2019
Formation of self-assembled supramolecular polymers by anti-electrostatic anion–anion and halogen bonding interactions journal January 2020
DFT design of polyguanidine – a unique two-dimensional material with high-energy density text January 2017
Anions Stabilize Each Other inside Macrocyclic Hosts journal October 2016
CO 2 Capture from Ambient Air by Crystallization with a Guanidine Sorbent journal December 2016
DFT design of polyguanidine – a unique two-dimensional material with high-energy density journal May 2017
DFT design of polyguanidine – a unique two-dimensional material with high-energy density text January 2017