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331 results for “organic_chemistry”
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Just a little organic chemistry thought for the day. 🧪💨
If I am an acid, my perfect neutralizer is supposed to be a base, right? It takes both to create that perfect, stable reaction.
So the real question is, who is the base? Who out there is holding down the other half of the equation? 😂⚖️
#Science #Chemistry #ScienceHumor #LifeThoughts #Relationships #Dating #Fediverse #AcidAndBase
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Long-Held Chemistry Tenet Questioned
A new study from the University of Newcastle challenges long-held rules in organic chemistry. This could change how science is taught.
#OrganicChemistry, #ScienceEducation, #ChemistryResearch, #UniversityNewcastle, #MolecularBehavior
https://newsletter.tf/organic-chemistry-rules-questioned-new-study/
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A recent study is questioning fundamental rules of organic chemistry that have been taught for years. This is a big change for science education.
#OrganicChemistry, #ScienceEducation, #ChemistryResearch, #UniversityNewcastle, #MolecularBehavior
https://newsletter.tf/organic-chemistry-rules-questioned-new-study/ -
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction.
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A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction.
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Save the date! We're thrilled to announce the #BeilsteinTalk "Electrifying organic synthesis" with Siegfried R. Waldvogel from the Max Planck Institute for Chemical Energy Conversion, Germany.
📅 September 24, 2026 🕓 4–5 pm CEST
💻 Online (Free)
🔗 https://www.beilstein-institut.de/en/talks/organic-chemistry-electrifying-organic-synthesis/?M=y#electrochemistry #OrganicSynthesis #sustainability #MaxPlanck #ChemicalEngineering #BeilsteinTalks @mpicec
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A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction.
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A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction.
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A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction.
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Coming up on Thursday: 📅 June 15, 2023 🕒 3–4 pm CEST
Online #BeilsteinTalk "#ROSgeneration by #photoexcited #fullerenes" with Yoko Yamakoshi, ETH Zurich @eth.
Participation is FREE – Register Now ➡️ https://www.beilstein-institut.de/en/talks/organic-chemistry-ros-generation/?M=y
#ReactiveOxygenSpecies #PhotodynamicTherapy #photosensitizers #BioSciences
#BeilsteinTalks -
Coming up next week: 📅 June 15, 2023 🕒 3–4 pm CEST
Online #BeilsteinTalk "#ROSgeneration by #photoexcited #fullerenes" with Yoko Yamakoshi, ETH Zurich @eth.
Register for FREE! 🔗 https://www.beilstein-institut.de/en/talks/organic-chemistry-ros-generation/?M=y
#ReactiveOxygenSpecies #PhotodynamicTherapy #photosensitizers #BioSciences
#BeilsteinTalks -
Quantum computing
Квантовые вычисления, Квантові обчислення
t.me/scilib_yura15cbx/112Programming languages
Мови програмування, Языки программирования
t.me/scilib_yura15cbx/110Computability
Вычислимость, Обчислюваність
t.me/scilib_yura15cbx/109Natural language
Природні мови, Естественные языки
t.me/scilib_yura15cbx/108Image processing
Обработка изображений, Обробка зображень
t.me/scilib_yura15cbx/106Information theory
Теорія інформації, Теория информации
t.me/scilib_yura15cbx/105Formal methods
t.me/scilib_yura15cbx/103Genetic, neural
t.me/scilib_yura15cbx/104Data mining
Сбор данных, Видобуток даних
t.me/scilib_yura15cbx/102Discrete math
Дискретная математика, Дискретна математика
t.me/scilib_yura15cbx/101Databases, базы данных, бази даних
t.me/scilib_yura15cbx/100Cryptography, Криптография, Криптографія
t.me/scilib_yura15cbx/99Computational geometry
Обчислювальна геометрія, Вычислительная геометрия
t.me/scilib_yura15cbx/98Concurrent, distributed
t.me/scilib_yura15cbx/97Computer algebra
Компьютерная алгебра, Комп'ютерна алгебра
t.me/scilib_yura15cbx/96Bioinformatics, Біоінформатика, Биоинформатика
t.me/scilib_yura15cbx/95Algorithms, Алгоритмы, Алгоритми
t.me/scilib_yura15cbx/93AI, artificial intelligence, Искусственный интеллект
штучний інтелект, искусственный интеллект, ИИ, ШІ, artificial intelligence Machine learning Natural language processing Neural networks Data mining Evolutionary computation Fuzzy systems Logic and Functional Programming Robotics Кибернетика Логическое и декларативное программирование ИИ Мозг и моделирование мышления Нейронные сети Нечеткая логика Обработка естественного языка Распознавание образов Робототехника Статьи Эволюционное моделирование Экспертные системы Кібернетика Логічне та декларативне програмування ІІ Мозок та моделювання мислення Нейронні мережі Нечітка логіка Обробка природної мови Розпізнавання образів Робототехніка Статті Еволюційне моделювання Експертні системи
t.me/scilib_yura15cbx/92Органическая химия
Organic chemistry, Органічна хімія
t.me/scilib_yura15cbx/90Химия и химическая технология
Хімія та хімічна технологія, Chemistry and chemical technology
t.me/scilib_yura15cbx/89Chemistry-Environmental-Material
t.me/scilib_yura15cbx/88School-level Chemistry
Химия школьного уровня, Хімія на шкільному рівні
t.me/scilib_yura15cbx/87Physical chemistry
Фізична хімія, Физическая химия
t.me/scilib_yura15cbx/86Encyclopaediae of chemistry
химическая энциклопедия, chemical encyclopedias, Енциклопедія хімії
t.me/scilib_yura15cbx/85Computational chemistry
Комп'ютерна хімія, Вычислительная химия
t.me/scilib_yura15cbx/84Chemistry, Хімія, Химия
history
t.me/scilib_yura15cbx/83Biology, биология, біологія
t.me/scilib_yura15cbx/81Biology - Genetics
генетика
t.me/scilib_yura15cbx/80Biology- Human
Человек, Людина
t.me/scilib_yura15cbx/79mathematical papers
Математичні статті
математические статьи
t.me/scilib_yura15cbx/76The New Yorker [1925 - 2021]
t.me/scilib_yura15cbx/75Grill, barbecue, steak, jerky, curing, smoking, sausage, charcuterie, outdoor kitchen
#кулинария, #готовка, #кухня, #природа, #cooking, #kitchen, #nature, #кулінарія, #готування,
t.me/scilib_yura15cbx/73Азбука кино , Cinema
Периодика, журналы Periodicals, magazines, journals Искусство Кино
t.me/scilib_yura15cbx/71Азбука кино , Cinema
История кино
t.me/scilib_yura15cbx/69_Компьютерная библиотека Ихтика
компьютер, компьютеры, техника, программирование, программы, софт, железо, базы данных computer, computers, programming, programs, software, hardware, databases
t.me/scilib_yura15cbx/64MolBiol Biological library BioLib biolibrary
Библиотека биологической литературы Бібліотека біологічної літератури
#биология #зоология #ботаника #генетика #методы #протоколы #иммунология #рак #протеомика #нейрология #физиология #нейробиология #анатомия и др. #Біологія #зоологія #ботаніка #генетика #методи #протоколи #імунологія #рак #протеоміка #нейрологія #фізіологія #нейробіологія #анатомія та ін. #biology #zoology #botany #genetics #methods #protocols #immunology #cancer #proteomics #neurology #physiology #neurobiology #anatomy, etc.
t.me/scilib_yura15cbx/63 -
#Maine Is a Warning for America’s #PFAS Future
Story by Zoë Schlanger
4/11/2024"Cordelia Saunders remembers 2021, the year she and her husband, Nathan, found out that they’d likely been drinking tainted water for more than 30 years. A neighbor’s 20 peach trees had finally matured that summer, and perfect-looking peaches hung from their branches. Cordelia watched the fruit drop to the ground and rot: Her neighbor didn’t dare eat it.
"The Saunderses’ home, in Fairfield, Maine, is in a quiet, secluded spot, 50 minutes from the drama of the rocky coast and an hour and 15 minutes from the best skiing around. It’s also sitting atop a plume of poison.
"For decades, sewage sludge was spread on the corn fields surrounding their house, and on hundreds of other fields across the state. That sludge is suspected to have been tainted with PFAS, a group of man-made compounds that cause a litany of ailments, including kidney and prostate cancers, fertility loss, and developmental disorders. The Saunderses’ property is on one of the most contaminated roads in a state just waking up to the extent of an invisible crisis.
Onur Apul, an environmental engineer at the University of Maine and the head of its initiative to study PFAS solutions, told me that in his opinion, the United States has seen 'nothing as overwhelming, and nothing as universal' as the PFAS crisis. Even the #DDT crisis of the 1960s doesn’t compare, he said: DDT was used only as an insecticide and could be banned by banning that single use. PFAS are used in hundreds of products across industries and consumer sectors. Their nearly 15,000 variations can help make pans nonstick, hiking clothes and plumber’s tape waterproof, and dental floss slippery. They’re in performance fabrics on couches, waterproof mascara, tennis rackets, ski wax. Destroying them demands massive inputs of energy: Their fluorine-carbon bond is the single most stable bond in organic chemistry."
Read more:
https://www.theatlantic.com/science/archive/2024/04/pfas-drinking-water-maine/678040/Archived version:
https://archive.ph/rV2vC#PFAS #PFOS #WaterIsLife #WaterPollution #PFASPollution #PFOA #PTFE #Wildlife #Cancer #Contamination #Chemicals #Environment #FoodPackaging #Plastics #FireFightingFoam #Firefighters #Health #Mining #Lubricants #Electronics #Cosmetics #PFNA #PFHxS #PFB #GenXChemicals
#Toxic #DowChemical #DuPont #3M #BASF #Teflon #RainWater #DrinkingWater -
AstraZeneca’s recent HPK1 study demonstrates that generative #AI can successfully discover novel, pre-clinically viable chemical scaffolds, provided the algorithms are backed by extensive datasets and continuously guided by expert medicinal chemistry judgment.
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Covalent inhibitors are a double-edged sword in #drugdiscovery: on the one hand, they can increase potency by binding to the protein of interest; on the other hand, they may increase side effects by binding non-selectively to other proteins.
Now, researchers from the University of South Florida have reported a novel warhead for the covalent binding of cysteine. Their design incorporates a strained system, which showed increased selectivity for EGFR binding.
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⚗️ For everyone interested in the synthesis of #antiviral #drugs:
I collected 7 synthesis routes for #entecavir, a marketed #HBV antiviral. At first sight, this carbocyclic nucleoside analogue looks quite simple, however, its synthesis requires a multi-step total synthesis.
Check the article for further information and share it with your audience:
https://www.organicchemistry.eu/books/nucleoside-analogues/page/synthesis-strategies-for-entecavir
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⚗️ For everyone interested in the synthesis of #antiviral #drugs:
I collected 7 synthesis routes for #entecavir, a marketed #HBV antiviral. At first sight, this carbocyclic nucleoside analogue looks quite simple, however, its synthesis requires a multi-step total synthesis.
Check the article for further information and share it with your audience:
https://www.organicchemistry.eu/books/nucleoside-analogues/page/synthesis-strategies-for-entecavir
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⚗️ For everyone interested in the synthesis of #antiviral #drugs:
I collected 7 synthesis routes for #entecavir, a marketed #HBV antiviral. At first sight, this carbocyclic nucleoside analogue looks quite simple, however, its synthesis requires a multi-step total synthesis.
Check the article for further information and share it with your audience:
https://www.organicchemistry.eu/books/nucleoside-analogues/page/synthesis-strategies-for-entecavir
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⚗️ For everyone interested in the synthesis of #antiviral #drugs:
I collected 7 synthesis routes for #entecavir, a marketed #HBV antiviral. At first sight, this carbocyclic nucleoside analogue looks quite simple, however, its synthesis requires a multi-step total synthesis.
Check the article for further information and share it with your audience:
https://www.organicchemistry.eu/books/nucleoside-analogues/page/synthesis-strategies-for-entecavir
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⚗️ For everyone interested in the synthesis of #antiviral #drugs:
I collected 7 synthesis routes for #entecavir, a marketed #HBV antiviral. At first sight, this carbocyclic nucleoside analogue looks quite simple, however, its synthesis requires a multi-step total synthesis.
Check the article for further information and share it with your audience:
https://www.organicchemistry.eu/books/nucleoside-analogues/page/synthesis-strategies-for-entecavir
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#Scientists created #microscopic reactors capable of driving light-powered #chemical processes by designing metal complex surfactants (MeCSs) that self-assemble into #nanoscale spheres called micelles. This innovation could drastically reduce #pollution in industries including #pharmaceuticals and materials science, where harmful organic solvents are often necessary.
#Chemistry #sflorg
https://www.sflorg.com/2025/02/chm02102501.html -
Rock Weathering Can Counteract River CO2 Emissions Induced By Permafrost Thaw
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https://doi.org/10.1038/s41586-026-10664-8 <-- shared paper
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H/T @aaron Bufe
“[The researchers] measured carbon emissions and water chemistry in 50 headwater rivers draining 780,000 km² of the Tibetan Plateau.
The rivers flow in landscapes underlain by continuous permafrost and landscapes in which the permafrost has retreated since the last glacial maximum. They collect[ed] organic carbon from soils and dissolved inorganic carbon that is fixed by rock-weathering.
Where the permafrost cover is continuous, rivers emit CO2 from degrading (permafrost) soil carbon. Weathering reactions in these catchments are relatively slow.
In landscapes with (almost) no permafrost, carbon fluxes from weathering are faster than CO2 emissions from rivers.
Thus, as permafrost landscapes transition to landscapes without permafrost cover, chemical weathering reactions may play an ever more important role in riverine carbon cycling.
Interestingly, weathering can affect the carbon cycle in different ways. Where sulfide minerals are present, weathering reactions can emit CO2. Where silicate minerals dominate, weathering draws down CO2 from the atmosphere…”
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“Climate-induced permafrost thaw unlocks large stores of organic carbon that are mineralized and emitted as carbon dioxide (CO2) from rivers to the atmosphere. Concurrently, warming and permafrost thaw can increase mineral weathering rates, thus affecting the release and sequestration of inorganic carbon. Yet how these biological and geological carbon cycles interact and jointly affect CO2 dynamics (emission compared with drawdown) in permafrost rivers remains unknown. Here [they] combine[d] CO2 emissions, organic and inorganic solute concentrations, dual carbon isotopes (δ13C–Δ14C) and geochemical modelling to infer how permafrost thaw may affect river biogeochemistry over decades to centuries across the Qinghai–Tibet Plateau. Leveraging a gradient of thermal permafrost degradation, we find that river CO2 emissions decline, whereas solute fluxes from rock weathering increase with decreasing permafrost cover. Across this region, net CO2 drawdown fluxes from rock weathering are about 35% of river CO2 emissions, varying from around 15% in catchments with continuous permafrost to more than 100% in catchments with discontinuous or isolated permafrost. Thus, carbon fluxes from chemical weathering may become increasingly important with ongoing permafrost thaw, potentially even outpacing river CO2 emissions. [Their] findings disentangle the interplay between biological and geological carbon fluxes that are important for the cryosphere and the global carbon cycle…”
#permafrost #melting #thaw #climatechange #warming #Tibet #TibetanPlateau #Qinghai #water #hydrology #carbonemissions #CO2 #emissions #waterchemistry #waterquality #cryosphere #sediment #sedimentation #weathering #rock #carbon #river #riverine #carboncyling #geochemistry #biology #geology #soil -
Arroganz – Death Doom Punks Review By Andy-War-HallOnce, punk ruled my heart as jealously as metal. I loved the heart-in-hand abandon and DIY ethos of acts like Rise Against, Social Distortion, Bad Religion, and Descendants,1 and though I still do metal nonetheless won out as my root genre. But punk and metal have always overlapped, and when the two offshoots of rock tango together, great things can happen.2 German death metallers Arroganz have been carrying out this uneasy marriage since 2008, dropping six testaments of metallic brutality and punkish rebellion over the years. Longtime bassist/vocalist -K- and drummer -T- are joined by the newcomer guitarist -B- for lucky number seven, Death Doom Punks, a declaration of purpose if there’s ever been one. I love the attitude, but an album can’t live by ‘tude alone. Will Arroganz’s infusion of punkish qualities into the death metal elevate Death Doom Punks, or will it merely spell death/doom for these punks?
Other bands have put death riffs over d-beats before, but Arroganz channel early Immolation/Death through Black Flag/Discharge-like hardcore grime in a way that feels particularly vital on Death Doom Punks. Whether through blistering speeds like on “Pain Forged Armor” or diabolical groove on “Anti-Ideology,” Arroganz’s knack for aggressive and catchy riffcraft keeps a near-constant stankface plastered over my skull. Classic death metal walking riffs meet soaring doom bass leads on “Die for Nothing,” while “Death Doom Punks” marries hardcore and doom into a gloomy, potent combo that reminded me that Caskets Open exists. Songs on Death Doom Punks are brief and intentionally simple, but hear the spider-y basslines on “Earth’s Final Dose,” the gigantic belting and bass-work over “Under Scarred Skin,” or the gnarly death march of “Spirit Arsonist” and know that Arroganz supercharged everything they wrote with everything they had. Simply, Death Doom Punks is what it says it is, and it’s awesome.
That Death Doom Punks is Arroganz’s seventh album is no surprise, as their chemistry and chops are something else. Rhythmically, Arroganz seamlessly slide into a snarling breakdown one moment on “Arsenic Breath” and throw down thrash stampedes the next on “Incubus’ Veins.” -K- is a beast of a bassist and vocalist, littering Death Doom Punks with nimble and concussive bass riffs and punk-influenced leads while bellowing throaty, acerbic condemnations of society. -B- fits Arroganz like a fingerless glove, clobbering Death Doom Punks with crushing grooves on the title track,3 gnarled and disjointed leads on “Pain Forged Armor,” and entwining leads with -K-‘s bass licks on “Arsenic Breath.” Arroganz play well together, and Death Doom Punk’s organic production and surprisingly dynamic mix make it apparent. The snare pop right, the bass warbles and clicks right, the guitar is crunchy and deep and everything sits just right in the mix. Arroganz may be no-good punks, but Death Doom Punks is clearly the product of adamant professionals and experts of their craft.
Arroganz’s most critical success is in knowing when to switch something up. Again, Death Doom Punks’ songs are on the simple side, but Arroganz shuffle through riffs, refrains, and bridges often enough to spare the listener from boredom while affording ideas enough time to settle to save themselves from riff salad. Frequent tempo shifts electrify Death Doom Punks further, spinning “Spirit Arsonist”‘s plodding bass riff into a total death metal meltdown and opening “Die for Nothing”‘s relentless show of force in the bridge for a righteous display of bass-forward doom. Conversely, the relatively static one-two combo of “Incubus’ Veins” and “Earths Final Dose” mark Death Doom Punk’s low point. Though -K-‘s screams sound more cutting than usual on “Incubus’ Veins” and “Earths Final Dose” features some slick fills from -T-, they don’t offer as much diversity as the other tracks and feel a bit one-track as a result. But that stretch is an exception to the rule of Death Doom Punks, which is largely a wild ride front-to-back.
Death Doom Punks sees ass, and it kicks it, no questions asked. I had never heard a lick of Arroganz before diving into Death Doom Punks—the title just sounded funny to me—but they’ve quickly made a fan of me over the weeks. The riffs are relentless. The hooks are huge. Did I mention the bass lines rock? Arroganz are simply a potent entity who know who they are and what they do well, and it comes through on Death Doom Punks. You should know it, too.
Rating: Very Good
#2026 #35 #Arroganz #BadReligion #BlackFlag #CasketsOpen #Death #DeathDoomPunks #DeathMetal #Descendants #Discharge #DoomMetal #GermanMetal #GreenDay #Immolation #May26 #Pantera #Punk #Review #Reviews #RiseAgainst #SocialDistortion #TestimonyRecords
DR: 7 | Format Reviewed: 320 kbps MP3
Label: Testimony Records
Websites: arroganz.bandcamp.com | facebook.com/arroganzgermany | www.arroganz.info
Releases Worldwide: May 15th, 2026 -
My highlights from this week’s #chemistry literature:
Light-induced piperazine functionalisation, selective FIZ1 degradation via thalidomide analogues and novel ketone homologation reaction. -
My highlights from this week’s #chemistry literature:
Light-induced piperazine functionalisation, selective FIZ1 degradation via thalidomide analogues and novel ketone homologation reaction. -
My highlights from this week’s #chemistry literature:
Light-induced piperazine functionalisation, selective FIZ1 degradation via thalidomide analogues and novel ketone homologation reaction. -
My highlights from this week’s #chemistry literature:
Light-induced piperazine functionalisation, selective FIZ1 degradation via thalidomide analogues and novel ketone homologation reaction. -
My highlights from this week’s #chemistry literature:
Light-induced piperazine functionalisation, selective FIZ1 degradation via thalidomide analogues and novel ketone homologation reaction. -
Organic builds trust. Paid buys speed. 🌱 Organic compounds over time; paid spikes while the budget lasts. The best teams don't choose — they combine both.
Save this cheat sheet. 📌
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Columbus' Leading Local News: Weather, Traffic, Sports and more in Columbus, Ohio | 10tv.com [Unofficial] @[email protected] ·Organic moringa leaf powder recalled nationwide over potential Salmonella contamination