Themed collection The Supramolecular Chemistry of Anions
The supramolecular chemistry of anions
Guest editors Katrina Jolliffe and Philip Gale introduce the Organic & Biomolecular Chemistry themed collection on the supramolecular chemistry of anions.
Optical sensing of anions by macrocyclic and interlocked hosts
This review summarises recent developments in the use of macrocyclic and mechanically-interlocked host molecules as optical sensors for anions.
Tetradentate halogen bonding macrocyclic anion receptor inspired by the “Texas-sized” molecular box
An analogue of the tetracationic “Texas-sized” molecular box containing iodotriazole halogen bond-promoting subunits (“Ibox”) was prepared and found to recognize larger halides in organic media.
Hydrophilic and hydrophobic carboxamide pincers as anion hosts
“Bare bones” pyridine dicarboxamide and pyrazine tetracarboxamide pincer frameworks were used to probe supramolecular anion binding. The influence of hydrophilic vs. hydrophobic environments and the potential for synergistic interactions in the ditopic hosts were explored.
Self-assemblies of anionic-unit-introduced anion-responsive π-electronic molecules
Carboxylate-appended anion-responsive π-electronic molecules provided anion-binding self-assemblies, as anionic supramolecular polymers, resulting in ion-pairing assemblies.
Bactericidal urea crown ethers target phosphatidylethanolamine membrane lipids
In this manuscript we report a small molecule that can selectively bind to the bacterial lipid phosphatidylethanolamine and consequently functions as an antibacterial agent against certain Gram-positive bacteria.
Anion binding to a cationic europium(III) probe enables the first real-time assay of heparan sulfotransferase activity
We present a new luminescent europium(III)-based anion receptor that binds to PAP (adenosine-3′,5′-diphosphate). The increased emission intensity and lifetime of the receptor-PAP complex was used to develop the first real-time assay of heparan sulfotransferase activity.
The effect of solvent on the binding of anions and ion-pairs with a neutral rotaxane
In this work we report the binding properties of rotaxane 1 towards a series of tetraalkylammonium salts of Cl−, OCN− and NO3− anions in acetone and a CHCl3/MeOH solvent mixture.
Acridinone-based anion transporters
The acridinone 1,9-bis(thio)urea scaffold was repurposed for application in anion transport by appending a variety of electron-withdrawing groups to the peripheral phenyl moieties. High levels of activity were achieved which facilitated strictly electroneutral transport.
Comparing the anion binding of 4-amido- with 4-amino-1,8-naphthalimides
The synthesis and evaluation of a new anion receptor based on the 4-amido-1,8-naphthalimide scaffold is described.
Red-shifted tetra-ortho-halo-azobenzenes for photo-regulated transmembrane anion transport
Squaramide functionalised red-shifted azobenzenes for cooperative anion binding and enhanced photo-regulated transmembrane transport are reported.
Cation-chloride cotransport mediated by an ion pair transporter
Chloride transport across a membrane mediated by an ion pair receptor through K+/Cl− or Na+/Cl− cotransport with a selectivity towards the K+/Cl− symport was realized.
Hydrazones in anion transporters: the detrimental effect of a second binding site
The effect of hydrazones and related functional groups on the anion transport activity of thioureas is presented.
Selective binding of anions by rigidified nanojars: sulfate vs. carbonate
By using nanojars as anion binding agents, selectivity for either carbonate or sulfate can be achieved upon rigidification of the nanojar outer-shell with tethers of varying lengths between pairs of pyrazole ligands.
Selective sensing of adenosine monophosphate (AMP) over adenosine diphosphate (ADP), adenosine triphosphate (ATP), and inorganic phosphates with zinc(II)-dipicolylamine-containing gold nanoparticles
Mixed monolayer-protected gold nanoparticles with surface-bound zinc(II) dipicolylamine units allow the selective detection of adenosine monophosphate in an aqueous solution.
Simple acyclic molecules containing a single charge-assisted O–H group can recognize anions in acetonitrile : water mixtures
Simple cationic compounds containing O–H hydrogen bond donors bind anions very strongly in acetonitrile, and with moderate strength in 9 : 1 acetonitrile : water.
About this collection
Anion receptor chemistry is a rapidly developing field. The shift from fundamental research to the development of systems capable of functioning under real-world conditions drives the development of new catalysts, receptors and anion transporters. This collection, guest edited by Professors Katrina A. Jolliffe and Philip A. Gale (University of Sydney) showcases the latest advances in the Supramolecular Chemistry of Anions.
The scope of the collection includes all aspects related to the supramolecular chemistry of anions including the design of new anion receptors and their applications in anion sensing and transport processes, self-assembly, catalysis and selective extraction.
New articles will be added to the collection upon publication. Please return to this page frequently to see the collection grow