skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Surprisingly selective sulfate extraction by a simple monofunctional di(imino)guanidinium micelle-forming anion receptor

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c8cc05115a· OSTI ID:1468178

Here, we report a novel di(imino)guanidinium anion extractant with unparalleled selectivity for sulfate in a liquid–liquid separation system. In addition to a 4.4 order-of-magnitude enhancement in affinity compared to a standard benchmark, our alkylated di(imino)guanidinium receptor is economically synthesized and features good compatibility with application-relevant aliphatic solvents. Small-angle X-ray scattering results reveal the formation of reverse-micelles, which together with the significant organic-phase water content challenge traditional notions of selectivity in extraction of superhydrophilic anions.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1468178
Alternate ID(s):
OSTI ID: 1465223
Journal Information:
ChemComm, Vol. 54, Issue 72; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (28)

Selectivity Principles in Anion Separation by Crystallization of Hydrogen-Bonding Capsules journal May 2010
Supramolecular Chemistry: Concepts and Perspectives book May 1995
Structural Design Criteria for Anion Hosts:  Strategies for Achieving Anion Shape Recognition through the Complementary Placement of Urea Donor Groups journal February 2005
Binding Hydrated Anions with Hydrophobic Pockets journal December 2015
A conformationally persistent pseudo-bicyclic guanidinium for anion coordination as stabilized by dual intramolecular hydrogen bonds journal January 2015
Ions in Solution and their Solvation book June 2015
Synthetic transporters for sulfate: a new method for the direct detection of lipid bilayer sulfate transport journal January 2014
Reverse osmosis desalination: Water sources, technology, and today's challenges journal May 2009
Evaluation of small-angle scattering data of charged particles using the generalized indirect Fourier transformation technique journal December 2000
Anion Separation with Metal–Organic Frameworks journal April 2007
A Case for Molecular Recognition in Nuclear Separations: Sulfate Separation from Nuclear Wastes journal June 2012
Anion-receptor molecules: Synthesis of a chiral and functionalized binding subunit, a bicyclic guanidinium group derived from L - or D - asparagine journal June 1988
Phosphorus resources, their depletion and conservation, a review journal December 2014
Crystallographic Evidence for Oxygen Acceptor Directionality in Oxyanion Hydrogen Bonds journal January 2002
Sulfate scale problems in oil fields water injection operations journal November 2006
Overview of the strategic approaches for the solid-state recognition of hydrated anions journal January 2017
CO 2 Capture from Ambient Air by Crystallization with a Guanidine Sorbent journal December 2016
Künstliche molekulare Anion-Wirte. Die Synthese eines chiralen bicyclischen Guanidinium-Salzes als funktionalisierte Ankergruppe für Oxo-Anionen journal April 1990
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
New Insights into the Anion Transport Selectivity and Mechanism of Tren-based Tris-(thio)ureas journal June 2018
Structural studies of microemulsions stabilised by aerosol-OT journal July 1991
The interpretation of real-space information from small-angle scattering experiments journal April 1979
Aqueous Sulfate Separation by Crystallization of Sulfate-Water Clusters journal August 2015
Anion receptor chemistry journal January 2011
Aqueous Sulfate Separation by Crystallization of Sulfate-Water Clusters journal August 2015
Anion Receptor Chemistry book April 2006
Supramolecular Chemistry journal January 2002
Supramolecular Chemistry journal May 2005

Cited By (4)

Selective binding of (thio)sulfate and phosphate in water by quaternary ammonium functionalized oligo-ureas journal January 2019
Probing the existence of uranyl trisulfate structures in the AMEX solvent extraction process journal January 2019
Ion-pair induced supramolecular assembly formation for selective extraction and sensing of potassium sulfate journal January 2019
Extraction and transport of sulfate using macrocyclic squaramide receptors journal January 2020