Nabarupa Bhattacharjee

a supervisor who doesnt give choices like this

📣 We’re looking for new members for our Board and Early Career Advisory Board (PhD / postdoc / PI) who care about EDIA and want to help guide the direction of WISC.
🗓 Deadline: Jan 31
👥 Open to all
👉 Apply here: www.womeninsuprachem.com/board-ecab-r...
#WomenInSTEM #SupramolecularChemistry

Congratulations Stanna!!! Wonderful news 🎉

Bambusuril Small-Molecule Ionic Isolation Lattices for Exciton Coupled Dimers and Dicationic Fluorophores Ionic self-assembly of molecular fluorophores is a promising avenue to program properties into optical materials. Controllable optical energies, lifetimes, exciton hopping and energy transfer have bee...

Get double out of your dye! Learn how we add bambusuril receptors as an alternative to cyanostar to bring two cyanine dyes into bright orange dimers! pubs.acs.org/doi/10.1021/...

#fluorescence #crystals #supramolecularchemistry

Multi-Ion Complexes and Competition from Bulky BArF– Anions for Chloride Binding in Ion Pairing Conditions Cationic charges have long been used to enhance anion binding. Embedding charge introduces strong ion pairing for target anions but also for off-target ions, ultimately generating a mixture of multi-ion species that are hard to identify and quantify. While many sidestep this problem using polar solvents and weakly coordinating ions, these approaches exclude a substantial cross-section of conditions found in applications spanning recognition, assembly, separations, templation, and catalysis. To confront this complexity, we study the binding of an anion to a cationic receptor featuring low shape complementarity in a low-polarity solvent to maximize ionic interactions. We prepared the receptor as a salt of the weakly coordinating tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (BArF–) anion and studied the binding of small chloride (Cl–) and medium-sized iodide (I–) anions. Surprisingly, the use of the bulky BArF– anion does not suppress ion pairing interactions, with 65% of the receptor being paired at 0.5 mM in dichloromethane. We observe multi-ion receptor-Cl– complexes (2:1, 1:1, 1:2), reinforcing the complexity that emerges when working in low-polarity media. We reveal the dependence of affinity on anion charge density and size and that bulky BArF– counteranions compete for chloride binding. These studies reveal the noninnocence of BArF– anions and strategies to quantify multi-ion species.

Bulky, non-coordinating anions are often innocent - until proven guilty!

Learn how to identify if BArF is associating with your cations under strong ion-pairing conditions – and how that association impacts target interactions between cations and anions.

pubs.acs.org/doi/10.1021/...

Congratulations 👏@gracegdhan.bsky.social

Selective Binding and Light-Driven Release of Fluorous PF6– and Radioactive 99TcO4– Anions for All-to-Nothing Liquid–Liquid Extraction The removal of anions from aqueous media using molecular receptors in liquid–liquid extraction is a long-standing strategy to clean up contaminated water sources. Therein, high selectivity is needed t...

We found a way to clean polluted water using a cyanostar molecules to grab bad ions—and then let go when hit with light! 🌟 Cyanostar removes fluorinated and radioactive anions, even at low levels (4 ppb) and with Dead Sea competition #WaterCleanup @nabarupa.bsky.social pubs.acs.org/doi/10.1021/...

Hi #ChemSky! @cenmag.bsky.social and I want to learn how the chemistry community might be affected by any immigration policies currently being proposed for 2025.

If you might be impacted and can give any insight, I'd really appreciate if you could fill out this form: forms.office.com/r/87NQhFKrFh

OK #chemsky do your thing. I have an immediate PhD vacancy working on a MOF / crystallography / electron diffraction project with Syngenta. Home fees and stipend are covered. Spread the word!