Fluorinated Calixpyrroles: Anion-Binding Extractants that Reduce the Hofmeister Bias

Journal Article · Wed Apr 30 00:00:00 EDT 2003 · Chemical Communications, 2003(17):2248-2249

DOI:https://doi.org/10.1039/b306385m· OSTI ID:993678

Levitskaia, Tatiana G; Marquez, Manuel; Sessler, Jonathan L; Shriver, James A; Vercouter, Thomas; Moyer, Bruce A

b-Fluorinated calix[4]pyrrole 1 and calix[5]pyrrole 2, strong, neutral anion-binding agents, were found to transport small anions effectively while overcoming the classical solvation-based Hofmeister anion bias selectivity. These two receptors showed an ability to extract smaller anions (bromide and chloride for 1 and nitrate and fluoride for 2) as effectively as iodide anion into nitrobenzene (NB). The present results also represent a rare example of liquid-liquid extraction of inorganic salts effected using an anion receptor in the absence of a cation co-extractant.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 993678
• Report Number(s): PNNL-SA-38519; TRN: US201023%%561
• Journal Information: Chemical Communications, 2003(17):2248-2249, Vol. 2003, Issue 17
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANIONS
CATIONS
CHLORIDES
FLUORIDES
IODIDES
NITRATES
NITROBENZENE
SOLVENT EXTRACTION
TRANSPORT
Calixpyrrole
anion selectivity
ion-pair extraction