Warren Piers

Rapid Intermolecular C–H Activation of Aromatic Substrates at a Cationic, Electrophilic Molybdenum(VI) Nitrido Complex: Mechanistic Nuance in C–H Amination When the cationic, octahedral terminal nitrido complex of Mo(VI) supported by a diborate pentadentate ligand is generated in the absence of trapping nucleophiles, it activates the C(sp2)–H bonds of si...

Rapid Intermolecular C–H Activation of Aromatic Substrates at a Cationic, Electrophilic Molybdenum(VI) Nitrido Complex: Mechanistic Nuance in C–H Amination | Journal of the American Chemical Society pubs.acs.org/doi/full/10....

Very pleased this work is out in JACS. Congrats Dr. Almquist!

Professor Emeritus Axel D. Becke @dalhousieu.bsky.social has passed away at age 72.

💯💯💯💯💯

Dalton Transactions promotional graphic for the "MOFs: Three Decades of Design and Discovery" collection.

To mark the 2025 #NobelPrize in Chemistry, we've launched a #MOFs collection, showcasing research by Laureates Susumu Kitagawa, Omar M. Yaghi & Richard Robson and their colleagues, spanning 3 decades of MOFs research from synthesis to application👀

Read now 👉 pubs.rsc.org/en/journals/...
#chemsky 🧪

A straightforward route to hexagonal-boron nitride fibers - Advanced Composites and Hybrid Materials Advanced fibers enable the fabrication of structures and composites for applications reliant on lightweight, oxidation resistant, mechanically strong, and electrically insulating materials, e.g. in all forms of land, air, and space transportation and in applications within extreme environments. Hexagonal boron nitride (h-BN) fibers harness these advantages, and in addition, offer ultra-high-strength-to-weight ratio and low density. Yet, existing precursors for polymer-derived BN fibers are limited to insoluble and air/moisture sensitive polyborazylenes, hindering fiber production at scale. In this contribution, we report a reliable, controllable, and scalable synthesis methodology for producing pure micro- and nano-h-BN fibers, offering a competitive alternative to NASA’s energy-intensive h-BN nanotubes production. The single-source precursor, N-methyl polyaminoborane (PMeAB), plays a pivotal role in this process. The catalytic, and scalable, synthesis of PMeAB with controlled molecular weights (Mw = 110,500–290,500 g·mol−1) enables the production of h-BN fibers by electrospinning method and thermolysis under ammonia. PMeAB molecular weight and concentration were identified as key factors dictating the viscosity and surface tension, and thus influencing the overall spinnability of the PMeAB solution. We reveal that the subsequent formation of a cross-linked intermediate during PMeAB thermolysis is essential to retain the fibrous morphology during the conversion to h-BN fibers. Comprehensive characterization demonstrated the purity and homogeneity of the h-BN fibers, with ~ 97 at.% of B and N contents combined throughout the fiber body. This newly disclosed route to h-BN fibers offers a route to potentially valuable multifunctional filler material for advanced lightweight composites suitable for applications in extreme environments.

It's finally out there .. #ChemSky
Paper with @nicolegrobert.bsky.social lab and Andy Weller lab

link.springer.com/article/10.1...

Where do I sign?

WHRC student-run community radio streaming 24/7

Excited that the kid is doing her first show on WHRC—MONKEY DISCO tonight at 7 pm east coast time. Streamable here: whrc-radio.com

The choice between Pipeline On The Left vs Pipeline On The Right isn't a choice at all & it's already started killing Canadians. Shame on all of you. #ClimateChange #abpoli #cdnpoli #MarkCarney #Nenshi #ClimateSky

As is the rookie’s arm!

Utterly unacceptable.

#abpoli #ableg #alberta #ABresistance

Massive earthquake happened yesterday in Canadian cycling.
History made.
Chapeau MVM!

Is 'pragmatism' good climate policy? | West of Centre | CBC Podcasts | CBC Listen Is “pragmatism” a good principle when it comes to tackling climate change? What does this big buzzword adopted by the Prime Minister and others in his government even mean, anyway?  As the Canadian Cl...

podcast alert! I've been critical of CBC's West of Centre in the past for the absence of climate in discussing pipelines and O and G production.
So very pleased to have heard an excellent conversation covering a lot of these topics. More please!
www.cbc.ca/listen/cbc-p...

We are looking for a highly motivated PhD student to join our ERC project AGILE at the interface of inorganic, organic and organometallic chemistry. A vibrant Team, cool chemistry and everything takes place in the cultural capitol of Europe CHEMnitz. Apply now: www.tu-chemnitz.de/verwaltung/p...

No, but it’s been a while since I watched that one!
This is Tarkovsky’s Stalker. Tough hint but I liked the line 😎

Finally getting around to watching this classic. @davepalmerusask.bsky.social name the film…

Congrats to newly minted Dr. Chang and thanks to Francois for serving as external examiner. One more over the finish line #35 😎

Super excited to see this one out! First of many from my postdoc in the Camp lab. Keep eyes out for more to come!

This is absolutely perfect.

It’s hard to anticipate that level of idiocy.

What Will It Cost to Renovate the ‘Free’ Air Force One? Don’t Ask.

Qatar's gift to Donald Trump of a luxury jet for his post-presidential use will cost taxpayers almost $1 billion in carefully concealed Pentagon funds. That's money straight from your taxes to Trump's personal benefit. www.nytimes.com/2025/07/27/u...

It is a sad state in Alberta politics.

Just over a week ago, we asked our audience to ignore an account that was set up clearly to troll us and harass a journalist and private citizen.

/1

#abpoli #ableg #cdnpoli

Hey Canada #markcarney

I was explaining to my Ukrainian colleague the phrase ‘There’s no such thing as a free lunch’. She told me the equivalent in Ukrainian is ‘The only free cheese is in the mousetrap’ - which is so much better

Rapid Intermolecular C-H Activation of Aromatic Substrates at a Cationic, Electrophilic Molybdenum (VI) Nitrido Complex: Mechanistic Nuance in C-H Amination When the cationic, octahedral terminal nitrido complex of Mo(VI) supported by a diborate pentadentate ligand is generated in the absence of trapping nucleophiles, it rapidly activates the C(sp2)-H bon...

Rapid Intermolecular C-H Activation of Aromatic Substrates at a Cationic, Electrophilic Molybdenum (VI) Nitrido Complex: Mechanistic Nuance in C-H Amination | ChemRxiv - doi.org/10.26434/che...
Another opus from Chris 😎

The Hudnall lab is hiring a Postdoctoral Fellow! Applicants excited about joining our recently relocated research group and interested in the synthesis of exotic main-group molecules, materials and heterodiatomics can email Dr. Hudnall directly. Please share!

Was my absolute pleasure to participate in the PhD defense of (now) Dr. Samydeb Mahato of Tim Storr’s group at SFU. Beautiful thesis, well defended! Congratulations!

People With Severe Diabetes Are Cured in Small Trial of New Drug

People With Severe Diabetes Are Cured in Small Trial of New Drug. Most in a small group of patients receiving a stem cell-based infusion no longer needed insulin, but the drug may not suit those with more manageable type 1 diabetes, by Gina Kolata www.nytimes.com/2025/06/20/h... via @nytimes.com

Development of electronically tuneable N-heterocyclic borates In this contribution, we describe the synthesis and characterization of novel borates constructed with N-heterocyclic arene substituents. Beyond providing comparable electronic and redox properties…

Take a look at 'Development of electronically tuneable N-heterocyclic borates'

New from @darrenderksen.bsky.social, Jeffrey Van Humbeck, @wpiers.bsky.social‬ and colleagues at @ucalgary.bsky.social‬.

#OpenAccess 🔓