Chemical structures of various polymers including tBu[n], TES[n], Den[n], Re[n], and Pt[n] with associated researchers' names and polymer chain lengths.

In their Award Lecture, Chalifoux & Tykwinski review breakthroughs in polyynes synthesis, offering insight into the properties of carbyne through molecular models.

Full paper published in our Special Issue ▶️ https://ow.ly/QIGZ50YhlSg

#Chemistry #Aromaticity #Chemsky
📸 cjc-2025-0069_f1

With this review, Tobias Morack, and co-researchers from Heidelberg University assess the current landscape of synthetically applied systems that achieve arene activation through π-bond localization. 
👉 https://tinyurl.com/nfdfk88a
#AreneActivation #dearomatization #aromaticity #arenes
#BJOC 💎🔓

Toronto's CN Tower stands tall against a cloudy sky with a chemical structure diagram overlaid on the left side.

Special Issue in the Canadian Journal of Chemistry: Topics from the 20th International Symposium on Novel Aromatic Compounds.

Guest Editors: Thomas Baumgartner, Marcus Drover, Jeff Morin, Chris Caputo

View the issue ▶️ https://ow.ly/iK8B50YhlOT

#Chemistry #Aromaticity #Chemsky

Toronto's CN Tower stands tall against a cloudy sky with a chemical structure diagram overlaid on the left side.

Special Issue in the Canadian Journal of Chemistry: Topics from the 20th International Symposium on Novel Aromatic Compounds.

Guest Editors: Thomas Baumgartner, Marcus Drover, Jeff Morin, Chris Caputo

View the issue ▶️ https://ow.ly/iK8B50YhlOT

#Chemistry #Aromaticity #Chemsky

Toronto's CN Tower stands tall against a cloudy sky with a chemical structure diagram overlaid on the left side.

Special Issue in the Canadian Journal of Chemistry: Topics from the 20th International Symposium on Novel Aromatic Compounds.

Guest Editors: Thomas Baumgartner, Marcus Drover, Jeff Morin, Chris Caputo

View the issue ▶️ https://ow.ly/V0Es50YhlNN

#Chemistry #Aromaticity #Chemsky

🎉 Congrats to Ankur on the first stable all‑silicon cyclopentadienide, out now in @science.org: doi.org/10.1126/scie.... A milestone for silicon aromaticity!

Even wilder: Takeaki Iwamoto’s group made the same molecule via a different route: doi.org/10.1126/scie....

#Science #Silicon #Aromaticity

Register for FREE for the online #BeilsteinTalk “The interplay between aromaticity and reactivity” with Israel Fernández @isra-group.bsky.social, Complutense University of Madrid 🇪🇸.

📅 Feb 5, 2026 🕒 3–4 pm CET
✍ tinyurl.com/2wk27476

#aromaticity #ComputationalChemistry #BeilsteinTalks

Coming up next week: Online #BeilsteinTalk “The interplay between aromaticity and reactivity” with Israel Fernández @isra-group.bsky.social, Complutense University of Madrid 🇪🇸.

📅 Feb 5, 2026 🕒 3–4 pm CET
✍ tinyurl.com/2wk27476

#aromaticity #ComputationalChemistry #BeilsteinTalks

Invitation to join the FREE online #BeilsteinTalk “The interplay between aromaticity and reactivity” with Israel Fernández @isra-group.bsky.social, Complutense University of Madrid 🇪🇸.
📅 Feb 5, 2026 🕒 3–4 pm CET
✍ https://tinyurl.com/2wk27476
#aromaticity #ComputationalChemistry #BeilsteinTalks

Save the date 📅 Feb 5, 2026 🕒 3–4 pm CET
Online #BeilsteinTalk “The interplay between aromaticity and reactivity” with Israel Fernández Israel Fernández, Complutense University of Madrid 🇪🇸.
FREE registration 🔗 tinyurl.com/2wk27476
#aromaticity #ComputationalChemistry #BeilsteinTalks

Great experience presenting my poster at @icesaa-4.bsky.social Enjoyed insightful discussions and interactions with many professors Heartfelt thanks to the organizing committee @maheshhariharan.bsky.social @henrikottosson.bsky.social for the arrangements. #aromaticity #compchem

Some snapshots from #TCS2025 at @iitbombay.bsky.social 📸
Had a wonderful opportunity to present my research on Aromaticity and interact with an incredible scientific community! 🔥🧪
#aromaticity #compchem

Quantum tunnelling drives aromaticity flip-flop Augmented pentalene structure could be a molecular Schrödinger’s cat, aromatic and antiaromatic at the same time

Quantum tunnelling drives aromaticity flip-flop #Science #Physics #QuantumPhysics #QuantumTunneling #Aromaticity #PhysicalChemistry

Anionic 5-endo-dig cyclizations: an experimental investigation of in-plane aromaticity involving a non-enolate carbanion nucleophile Cyclitive additions of aliphatic carbanions to non-electrophilic carbon–carbon triple bonds under mild, transition-metal-free conditions are described for the first time. These results confirm theoret...

Anionic 5-𝘦𝘯𝘥𝘰-𝘥𝘪𝘨 cyclizations: an experimental investigation of in-plane aromaticity involving a non-enolate carbanion nucleophile

✨ New insights into alkyne cyclizations under mild, metal-free conditions ⚗️🔬

#OrganicChemistry #Cyclization #Aromaticity
doi.org/10.1039/D5QO...

🎉 We had an amazing time at @Aromaticity2025 a couple of weeks ago! Here’s a collection of great memories. Huge thanks to Gabriel Merino @miquelsola.bsky.social and @henrikottosson.bsky.social for making it all possible! 🙌 #Aromaticity

Indoloindolizines: The Complete Story of a Polycyclic Aromatic Scaffold from Theoretical Design to Organic Field-Effect Transistor Applications The development of stable and tunable polycyclic aromatic compounds (PACs) is crucial for the advancement of organic optoelectronics. Conventional PACs, such as acenes, often suffer from poor stability due to photooxidation and oligomerization, which are linked to their frontier molecular orbital energy levels. To address these limitations, we designed and synthesized a new class of π-expanded indoloindolizines by merging indole and indolizine moieties into a single polycyclic framework. We developed a scalable synthetic protocol to produce a wide range of π-expanded derivatives. The structural, electronic, and optical properties of these compounds were extensively characterized. We achieved precise modulation of the electronic structure by controlling the aromaticity of specific rings. Benzannulation at targeted positions allowed fine-tuning of the HOMO–LUMO gap, leading to distinct shifts in the optoelectronic properties. Single-crystal X-ray diffraction confirmed their molecular structures, while theoretical calculations provided insights into the observed experimental trends. These indoloindolizines exhibit vivid colors and fluorescence across the visible spectrum and enhanced stability against photooxidation. Reactivity studies demonstrated high regioselectivity in electrophilic substitutions, highlighting the indole-like behavior of these compounds and opening avenues for further functionalization. To showcase the practical utility of our design rules, we fabricated organic field-effect transistors (OFETs) using the newly developed indoloindolizines, which revealed remarkable performance with ambipolar charge transport properties. Overall, our work establishes indoloindolizines as a promising platform for the development of stable, tunable organic materials for optoelectronic applications. Through rational molecular design, we have provided a new pathway for molecular innovation in organic electronics.

The fruit of our first collaboration with Przemyslaw Gaweł in 2025 is a stable OFET. From design to device fabrication in a single paper published in @acsjacs.bsky.social. #Aromaticity is utilized for tuning the band gap in a new PAC, Indoloindolizine.
pubs.acs.org/doi/10.1021/...

py.Aroma: An Intuitive Graphical User Interface for Diverse Aromaticity Analyses The nucleus-independent chemical shift (NICS) criterion plays a significant role in evaluating (anti-)aromaticity. While being readily accessible even for non-computational chemists, adding ghost atom...

#py.AROMA
this looks very useful for #aromaticity investigations
#pisky #chemsky
doi.org/10.3390/chem...

Binding of a Co(III) Metalloporphyrin to Amines in Water: Influence of the pKa and Aromaticity of the Ligand, and pH-Modulated Allosteric Effect | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Tomas and co-workers @InorgChem #cobalt #metalloprophyrin #amines #pKa #aromaticity #pH

Cool papers on #aromaticity and #antiaromaticity have been a theme in #ChemSci this year. Here's a new Perspective on the (highly debated) topic! 🧪#ChemSky