Raynal CNRS

@cnrs.fr @sorbonne-universite.fr @ipcm-sorbonne.bsky.social @ipcm-sorbonne.bsky.social @chemistryeurope.bsky.social @agencerecherche.bsky.social

Congrats to Ran Chen for this as well as for the thesis defense of yesterday :). Thanks to the ANR for funding.

The Ascent of Supramolecular Polymers and Gels in Asymmetric Catalysis SPs and gels emerged as modular platforms for asymmetric catalysis. This review ranks literature reports according to the achiral or chiral nature of the monomers bearing the catalytic site. New para...

Great pleasure to write "state-of-the-art" on the use of supramolecular polymers and gels in asymmetric catalysis. Hope it will be helful for the community: chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...

Welcome & please follow to get updates on International Symposium on Macrocyclic & Supramolecular Chemistry 2026 at Bordeaux 🇨🇵 and don't hesitate to reach out...

...but first lets enjoy the excellent programme at ISMSC2025 in Kyoto 🇯🇵

📣Organized by RSEQ, the XL Biennial will take place in Bilbao, Spain, from June 30 to July 3, 2025.
Join us for Symposium 9 on July 1st and 2nd, 2025:
"Supramolecular Chemistry: Towards a Biomimetic and Functional Future (SUPRABIOFUNC)"

Don't miss an exciting lineup of invited speakers!

GT Chimie des Origines Le GT Chimie des Origines est un Groupe Thématique de la Société Chimique de France

Bonjour Bluesky! 👋 N'hésitez pas à vous abonner à ce compte si vous souhaitez avoir les dernières informations du groupe thématique "chimie des origines" rattaché à la Division de Chimie Organique de la SCF @scf-dco.bsky.social.

Et visitez notre site web :
sites.google.com/view/gt-chim...

Hello everyone, we are hiring a Postdoctoral Researcher to start as soon as possible we have a PhD fellowship to start in October 2025. Both are funded by the ERC. All the information is here, do not hesitate to share and to contact me! #chemsky #PiSky

Les inscriptions aux “Journées de Chimie Supramoléculaire” JCS2025 sont maintenant ouvertes (gratuit mais obligatoire pour les étudiants, doctorants et post-doctorants) jcs2025.sciencesconf.org

Poster du séminaire de Benoit Colasson sur le contrôle supramoléculaire des complexes métalliques, prévu le 3 février 2025, à 11h00, Campus P&M Curie, Esclangon, Amphi Herpin. Seminar poster for Benoit Colasson on supramolecular control of metal complexes, scheduled for February 3, 2025, at 11:00, Campus P&M Curie, Esclangon, Amphi Herpin.

➡️ Actu IPCM : lnkd.in/e8BQMYtQ
✨ Nous avons le plaisir d'accueillir Benoit COLASSON (Université Paris Cité) pour un séminaire CulturChem à l' @ipcm-sorbonne.bsky.social, @epom-ipcm.bsky.social, @sorbonne-universite.fr

Thanks to Antoine and Laetitia for the hard work. @sorbonne-universite.fr @cnrs.bsky.social

Ion Mobility Mass Spectrometry to Probe Sequences in Supramolecular Copolymers The analysis of the microstructure of supramolecular copolymers is difficult because of their dynamic character. Here, benzene-1,3,5-tricarboxamide (BTA) co-assemblies are analysed by ion mobility - ...

Glad to join #chemsky and share our latest work on probing the sequence of supramolecular polymers with ion mobility / mass spectrometry! Great colloboration between @ipcm-sorbonne.bsky.social @univevry.bsky.social and UMons. Open access in @angewandtechemie.bsky.social doi.org/10.1002/anie...

Sequential and Time-Controlled Sol–Gel Transitions by Mechanical Switching of Molecular Tweezers Controlling the motion of molecular machines to influence higher-order structures is well-established in biological systems but remains a significant challenge for synthetic analogs. Herein, we aim to harness the mechanical switching of switchable molecular tweezers to modulate their self-assembly and produce stimuli-responsive organogels. We report a series of terpy(Pt-salphen)2 molecular tweezers functionalized with alkyl chains that act as low-molecular-weight gelators (LMWGs) in their open conformation. The resulting organogels were thoroughly characterized by SEM, cryo-TEM, SAXS, and rheology. The macroscopic transition from gel to solution was achieved by the cation-induced closing of the tweezers, which triggers their substantial structural reorganization. Reversible sol–gel transitions were achieved through the sequential addition of chemical stimuli or by a decomposable acid in a time-controlled operation. Such transient disassembly process regulated by a chemical fuel enables multiple gelation cycles with minimal waste while maintaining stable rheological properties. These results underscore the potential of switchable molecular tweezers in creating advanced stimuli-responsive materials.

Excited to share our latest paper now out in #JACS! Using switchable molecular tweezers to control self-assembly and achieve reversible sol-gel transitions.
Huge thanks to @msellemp.bsky.social, Geoffrey, Louise, Nate & Clément! @ipcm-sorbonne.bsky.social #ChemSky
pubs.acs.org/doi/10.1021/...

🚨Save the date!!!🚨The next SCF Division de Chimie Organique (DCO) Spring Meeting will take place on March 26th at the Université Claude Bernard in Lyon 1. Stay tuned for more information!

🚨Speaker alert🚨 Pr. Robert Phipps @cambridgeuni.bsky.social will be one of our speakers at the next Spring DCO meeting that will take place march 26, 2025 in Lyon (F). Join us to discover his recent exciting results!! dco-printemps25.sciencesconf.org