Florent Louis, FRSC

💚 #RSCPoster 2026.... The gift that keeps on giving! Cannot express how delighted I am to be involved in the inaugural year of Sustainable Science as a poster category. 💚

Glad you're in again @panchajaviera.bsky.social and @julianavidal.bsky.social
Same for me in environment ☺️

Thermodynamic Properties of Gaseous Selenium Species of Atmospheric Interest Selenium (Se) is an essential element for fauna, flora, and human health. Up to a third of Se can cycle through the atmosphere. The volatile organic Se species include dimethyl selenide (CH3SeCH3), dimethyl diselenide (CH3SeSeCH3), and methaneselenol (CH3SeH), and will undergo rapid atmospheric oxidation. To better constrain the fate of atmospheric Se compounds, high-level ab initio electronic structure calculations were performed to estimate the thermodynamic properties of 11 gaseous Se species (HSe•, H2Se, CH2Se, CH3SeH, •CH2SeH, CH3Se•, CH3SeSe•, CH3SeCH3, CH3Se•CH2, CH3SeSeCH3, and CH3SeSe•CH2) using their atomization reactions. Several corrections were applied to provide highly accurate calculated standard enthalpies of formation at 298 K, ΔfH°298 K. Standard molar entropy at 298 K, S°298 K, and heat capacity, Cp(T) over the temperature range 300–1500 K, from vibrational, translational, and external rotation contributions were computed using statistical thermodynamics based on the vibrational frequencies and structures obtained at the CCSD(T)/aVTZ level of theory. Hindered rotational contributions to S°298 K and Cp(T) were calculated from the energy levels, where the internal rotation potential was calculated at the MP2/aVTZ level of theory. The bond dissociation energies at 298 K for H–Se, Se–Se, and C–Se bonds in the Se molecules were derived from their calculated ΔfH°298 K values. The same protocol was applied to O and S species for comparison with Se. Their ΔfH°298 K, S°298 K, and Cp(T) values were in good agreement with the corresponding available literature data. This work provided the first thermodynamic properties for the organic Se species. The data obtained in this work could be used in chemical-transport models to assess the fate of atmospheric Se and its speciation unravelling the Se biogeochemical cycles.

Don't miss to have a look at our last paper issued in The Journal of Physical Chemistry A pubs.acs.org/doi/10.1021/...

Fruitful 🇨🇦 🇺🇾 collaboration
@univlille.bsky.social @rechercheulille.bsky.social
@cnrs-hautsdefrance.bsky.social

@nadineborduas.bsky.social

Headshots of Dr. Laurie Chan from University of Ottawa and Dr. Lisa Loseto from Fisheries and Oceans Canada as Co-Editors-in-Chief for Contaminants, Environment, and Society.

Meet the leaders guiding Contaminants, Environment, and Society! Laurie Chan and Lisa Loseto bring world-class expertise in toxicology, contaminants, and Indigenous-informed research. The journal is accepting submissions. Submit yours today ▶️ https://ow.ly/Y2CI50Xzbsq

Excited to share this new adventure as associate editor, thanks @cdnsciencepub.com for your confidence

Strengthening french canadian collaboration in environmental chemistry
@univlille.bsky.social @rechercheulille.bsky.social @cnrs-hautsdefrance.bsky.social @cnrsincanada.bsky.social

A lire
www.nationalgeographic.fr/environnemen...

Proud to share that the @rsc.org nominated me as its International Representative in France

@univlille.bsky.social @rechercheulille.bsky.social
@cnrs-hautsdefrance.bsky.social @cnrsingenierie.bsky.social

@ciccheminst.bsky.social

members.rsc.org/site/content...

Image of a marsh area and three workers wearing reflective vests.

We're opening for submissions in November!

The journal aims to advance shared knowledge by publishing insights from diverse fields, disciplines, and knowledge systems directed towards solutions and preventative measures.

Learn more: https://ow.ly/LNtA50Xf9LZ

Des pesticides et des substances pharmaceutiques relevés sur l’ensemble du littoral français De 2021 à 2024, les scientifiques de l’Ifremer et du laboratoire EPOC, rattaché entre autres au CNRS, ont recherché dans l’eau de mer et dans des mollusques la présence d’une centaine de contaminants.

66 substances recherchées en mer, 3/4 retrouvées t au moins une fois, notre des herbicides, y compris des molécules interdites, comme l’atrazine, employée jusqu’en 2003 ou le metolachlore banni en 2023. En tout "sept herbicides présents et mesurés dans plus de 70 % des analyses en eau de mer"

Characterization of the excited electronic states of the SH radical by ab initio methods Ab initio MRD-CI calculations have been performed for the SH radical in its low-lying valence states as well as vertically for the first Rydberg terms (2π24s, 2π24p and 2π23d). The lowest 1 4,2Σ-...

Looking for the following pdf, DM open
www.tandfonline.com/doi/abs/10.1...

Hi Rachel, well received, thanks

Calculation of spectroscopic parameters and vibrational overtones of methanol A high-level quartic ab initio potential energy surface of methanol has been used to calculate spectroscopic constants of the 12CH3OH molecule. These include coefficients of quartic anharmonic reso...

Looking for the following pdf, DM open
doi.org/10.1080/0026...

Questions about the new journal? We welcome your ideas and feedback as we approach opening for submissions later this fall. Drop by our booth at #CEW2025 and leave us a note on the red board.

Or, drop by the West Coast Room tomorrow between 2:30-4 to Meet the Editors! @ecotoxcan.ca

Thanks, well received

Reactivity of hydroxyl radicals with neonicotinoid insecticides: mechanism and changes in toxicity - Photochemical & Photobiological Sciences The reactivity of hydroxyl radicals (HO·) towards three neonicotonoid insecticides, namely imidacloprid, thiacloprid and acetamiprid was investigated. These radicals were generated by photolysis of H2O2 solutions. Flash photolysis experiments were used to determine the rate constants of 5.5 × 1010 M−1s−1, 6 × 1010 M−1s−1, and 7.5 × 1010 M−1s−1, for the reactions of HO· with acetamiprid, imidacloprid, and thiacloprid, respectively. Continuous irradiation experiments in the absence and presence of H2O2 allowed the identification and toxicity evaluation of the primary photo- and oxidation products of the insecticides. In all cases, the less toxic 6-chloronicotinic acid was found to be the major product at higher degrees of oxidation. The results reported here indicate that the half life of the insecticides due to their reaction with HO· radicals in natural aquatic reservoirs may vary between 5 h and 19 days, and therefore the hydroxyl radical-mediated oxidation may be a significant abiotic elimination route. However, elimination of the insecticide under such conditions might not improve the quality of the contaminated water, as the primary products of degradation still show considerable toxicity to Vibrio fischeri assays.

Looking for the pdf file for the following paper
link.springer.com/article/10.1...

Any help would be welcome DM open

🎖️Florent Louis, élu Fellow de la Royal society of chemistry Ce titre prestigieux récompense Florent Louis, chercheur au Laboratoire PhysicoChimie des Processus de Combustion et de l'Atmosphère…... 🎖️Florent Louis, élu Fellow de la Royal society of chemistry Ce titre prestigieux récompense Florent Louis, chercheur au Laboratoire PhysicoChimie des Processus de Combustion et de l'Atmosphère (PC2...

Thanks @rechercheulille.bsky.social @univlille.bsky.social
for sharing this great award given by @rsc.org in part due to my implication in @envsci.rsc.org #ESPI and #RSCposter
@fst-ulille.bsky.social @cnrs-hautsdefrance.bsky.social

www.linkedin.com/feed/update/...

Congratulations !

Screenshot showing Cora Young as a winner of the AGU Ascent Award.

Congratulations to Cora Young, @svocora.bsky.social, for the AGU Ascent award!!
tinyurl.com/5v8fj8b7

Less than a month until I'll be in beautiful Victoria for #CEW2025 representing @contaminantsenvsoc.bsky.social at the @cdnsciencepub.com booth. Please make sure to stop by, or let me know if you're giving a talk you want me to see!

Phase-dependent thermodynamics and kinetics of sulfate radical oxidation of metazachlor herbicide: a theoretical study - Chemical Papers The sulfate radical anion (SO4●–)-initiated oxidation of the herbicide metazachlor (MTZ) was investigated in aqueous and gaseous phases using the density functional theory at the M06-2X/6-311++G(3df,3...

Happy to share our last paper on #pesticides #atmoschem
published in Chemical Papers

Fruitful international colllaboration @univlille.bsky.social @cnrs-hautsdefrance.bsky.social @comeniusuni.bsky.social Duy Tan University

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

Thrilled to have received my certificate of the Fellow status by the @rsc.org in recognition of remarkable achievements in the field of Chemical Sciences!
@envsci.rsc.org

@univlille.bsky.social @rechercheulille.bsky.social
#PC2A @cnrs-hautsdefrance.bsky.social @cnrsingenierie.bsky.social

I am honored to have been awarded the Fellow status by the Royal Society of Chemistry (FRSC) in recognition of remarkable achievements in the field of Chemical Sciences!
@rsc.org @envsci.rsc.org
@univlille.bsky.social @rechercheulille.bsky.social
@cnrs-hautsdefrance.bsky.social

Whales swimming in foggy water. Copy reads 'Your research has a home here.' The Canadian Science Publishing logo sits in the bottom right corner.

We’re here to support Canadian researchers at every step of the publishing journey. Enter a draw to win an open access waiver with no APCs or fees.

Learn more ▶️ buff.ly/YdjPgI2

#YourResearchHome

Proud of my PhD student Madhumita Chakraborty PC2A PhLAM @ctoubin.bsky.social awarded by the best poster prize at the workshop on theoretical physical chemistry and atmospheric chemistry
@cnrs-insu.bsky.social
@cnrs-hautsdefrance.bsky.social @univlille.bsky.social
@huixrotllant.bsky.social

Excellent time spent within the French atmospheric chemistry workshop @cnrs-insu.bsky.social @univ-amu.fr
performing either experiments or molecular simulations (in silico experiments) 😜
@univlille.bsky.social @rechercheulille.bsky.social @cnrs-hautsdefrance.bsky.social
@ctoubin.bsky.social

I am thrilled to share that our CDP AREA guest professor Oscar Ventura will talk about chalcogen chemistry during his stay in my group for strengthening france-uruguay collaboration in environmental chemistry
@univlille.bsky.social @rechercheulille.bsky.social @cnrs-hautsdefrance.bsky.social

Thrilled to participate to the international affairs meeting @univlille.bsky.social sharing my own network and presenting our potential future partnerships with western canada universities

Thanks for the invitation @nil-toulouse.bsky.social

@franceaucanada.bsky.social @cnrsincanada.bsky.social

a dog with a butterfly on its head is holding a sign that says " welcome to eaky " ALT: a dog with a butterfly on its head is holding a sign that says " welcome to eaky "

Bienvenue sur bluesky à notre service recherche
@rechercheulille.bsky.social @rechercheulille.bsky.social @cnrs-hautsdefrance.bsky.social

Structure Data of Free Polyatomic Molecules / Strukturdaten freier mehratomiger Molekeln

Hello, I am looking for the pdf of this book. Any help will be welcome 😉
link.springer.com/book/9783540...

Attirer les meilleurs étudiant.e.s et les meilleurs chercheur.se.s étrangers, diversifier les origines géographiques, augmenter la visibilité des offres de formation françaises pour l’étranger… Autant de sujets à travailler avec les universités partout en France. #DiplomatieScientifique