Found in Parrsboro Nova Scotia. Weird spherical formations throughout. Can not scratch with thumb tact and no reaction to white vinegar. Resubmitted with better photos reddit.com/gallery/s1ama1
πŸ‘︎ 43
πŸ’¬︎
πŸ‘€︎ u/racoonx
πŸ“…︎ Jan 11 2022
🚨︎ report
Found in Parrsboro Nova Scotia. Weird circular formations through out. Cannot scratch with a thumb tact and no reaction to white vinegar. Anyone with any ideas? reddit.com/gallery/rztlqc
πŸ‘︎ 5
πŸ’¬︎
πŸ‘€︎ u/racoonx
πŸ“…︎ Jan 09 2022
🚨︎ report
Fenerbahçe manager Vitor Pereira facepalming in reaction to a question about formation after being criticised for playing a 343 all season v.redd.it/bk7qfvjs4v181
πŸ‘︎ 152
πŸ’¬︎
πŸ‘€︎ u/TeoamTheGreat
πŸ“…︎ Nov 26 2021
🚨︎ report
For this synthesis reaction, for the formation of alkene, how do we know that the pi bond is not placed on the other C-C in the ring as shown in the red drawing?
πŸ‘︎ 31
πŸ’¬︎
πŸ‘€︎ u/WackyGlory
πŸ“…︎ Nov 13 2021
🚨︎ report
TIL about the OKLO-reactor in Gabon, Africa which is one of the most intriguing geological formations found on planet Earth. Here, naturally occurring fissile materials in two billion year-old rocks have sustained a slow nuclear fission reaction like that found in a modern nuclear reactor. iaea.org/newscenter/news/…
πŸ‘︎ 764
πŸ’¬︎
πŸ‘€︎ u/TheGuvnor247
πŸ“…︎ Aug 29 2021
🚨︎ report
A lifetime of living in Reaction formation?

I'm reaching a point in disentangling my own emotions, sorting out the ones that are authentic and the ones that appear to be merely reactive, strategic, or based out of reaction formation.

Reaction formation is an early term- one of the few solid insights that Freud actually produced- that is used to refer to unconscious and deeply conditioned emotional reactions. It refers to any behavioral reaction used to cover a deeper feeling the feeler doesn't want to feel. The classic example is the violent homophobe who is secretly (unconsciously) afraid they are queer. Other examples are phobias that cover for fascination (we are terrified of heights because we really want to jump), or we experience a huge amount of rage to cover for an equally huge amount of woundedness or fear of rejection. We make ourselves big and loud because we are afraid we are small and invisible. As a child I experienced a huge amount of paternal rage because my dad probably was afraid he wasn't valued.

This means I've adopted the curse of experiencing anger whenever I'm afraid of not being seen or heard, and this pattern is becoming increasingly visible to me. I have an internal character that feels its necessary for their survival to feel rage whenever they believe someone is not properly acknowledging them. It's anger, but not a direct, honest, boundary setting anger. It's a visceral reaction designed to hide my fear of not mattering. It's one of my reaction formations.

What am I'm asking myself now is: how many people around me actually felt authentic emotions? How many of the people in my family of origin and in my surroundings were simply tightly wound bundles of reaction formation patterns? Was everyone crazy, including me? Are we all crazy now? It feels confusing, but I guess it's part of the process.

πŸ‘︎ 92
πŸ’¬︎
πŸ‘€︎ u/Dukeofurl111
πŸ“…︎ Sep 17 2021
🚨︎ report
Imine formation from an aldehyde or ketone: Sn reaction or nucleophilic addition?

I would think it’s a Sn1 reaction because that’s what my book says and the O is being replaced with an NH group. But according to other sources I’ve read it is a nucleophilic addition reaction.

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/i_b213
πŸ“…︎ Sep 14 2021
🚨︎ report
βˆ†H (heat of formations) vs βˆ†H (heat of reaction) vs βˆ†H (bond dissociation energies)?

I don't really understand how these are different (esp heat of formations vs heat of reaction) or why the bond dissociation energy is the reverse of the former two.

Any help?

πŸ‘︎ 6
πŸ’¬︎
πŸ‘€︎ u/pre-med-pm
πŸ“…︎ Sep 16 2021
🚨︎ report
How would you calculate the enthalpy of this reaction? I want to make a graph representing it. I tried to do energy of bonds created - energy of bonds broken, but I'm not sure if it's right or how to calculate the enthalpy of formation...
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/luzcal
πŸ“…︎ Sep 30 2021
🚨︎ report
| Laboratory experiment confirming astrochemical reaction pathway for organic compounds: | Non-energetic, Low-Temperature Formation of C(alpha)-Glycyl Radical, a Potential Interstellar Precursor of Natural Amino Acids pubs.acs.org/doi/10.1021/…
πŸ‘︎ 29
πŸ’¬︎
πŸ‘€︎ u/Hoihe
πŸ“…︎ Aug 03 2021
🚨︎ report
What could be the mechanism for this reaction? I feel like theres a rearrangement taking place after formation of the carbocation, but where does the second OH go?
πŸ‘︎ 27
πŸ’¬︎
πŸ‘€︎ u/teachmechemsenpai
πŸ“…︎ May 14 2021
🚨︎ report
(Grade 12) Do I need to use the Heat of formation to figure this out? I have not found anything on the internet that will help me solve this and I do not know how to get the molar enthalpy of this reaction
πŸ‘︎ 3
πŸ’¬︎
πŸ‘€︎ u/BattleTitan6
πŸ“…︎ Jul 18 2021
🚨︎ report
Geese flying over in V formation not able to spot them nor reaction to caller

I am playing in Hirschfelden and i watched some videos about geese hunting. Then can be spotted and shot while flying in V formation. I tested being hidden using caller and many geese V formation flyed over me and i am not able to spot them and they dont reaction at all. Is this one of the broken features on PC???

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/jagavila
πŸ“…︎ Jul 11 2021
🚨︎ report
Mechanism of the formation of proton transfer pathways in photosynthetic reaction centers pnas.org/content/118/30/e…
πŸ‘︎ 19
πŸ’¬︎
πŸ‘€︎ u/MarcHerb
πŸ“…︎ Jul 26 2021
🚨︎ report
What could be the mechanism for this reaction? I feel like theres a rearrangement taking place after formation of the carbocation, but where does the second OH go?
πŸ‘︎ 11
πŸ’¬︎
πŸ‘€︎ u/teachmechemsenpai
πŸ“…︎ May 14 2021
🚨︎ report
Hello, can someone tell me if a reaction catalyzed by the formation of an acyl triethylammonuim is right? And I would like to know why it accelerates the reaction?
πŸ‘︎ 10
πŸ’¬︎
πŸ‘€︎ u/froxy74
πŸ“…︎ May 25 2021
🚨︎ report
Soil in wounds can help stem deadly bleeding. The presence of soil in wounds helps activate a blood protein, known as coagulation Factor XII. Once activated, the protein kicks off a rapid chain reaction that helps leads to the formation of a plug, sealing the wound and limiting blood loss. med.ubc.ca/news/soil-in-w…
πŸ‘︎ 2k
πŸ’¬︎
πŸ‘€︎ u/Wagamaga
πŸ“…︎ Apr 28 2020
🚨︎ report
Mechanism of the formation of proton transfer pathways in photosynthetic reaction centers pnas.org/content/118/30/e…
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/MarcHerb
πŸ“…︎ Jul 26 2021
🚨︎ report
Psychologist Breaks Down Andre & Meegan's Break Up (Gaslighting, Projection, Reaction Formation) youtu.be/fGbMvRKmJ4w
πŸ‘︎ 5
πŸ’¬︎
πŸ‘€︎ u/rdaluz
πŸ“…︎ Jul 09 2021
🚨︎ report
(Grade 12 Chemistry) Do I need to use the Heat of formation to figure this out? I have not found anything on the internet that will help me solve this and I do not know how to get the molar enthalpy of this reaction
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/BattleTitan6
πŸ“…︎ Jul 18 2021
🚨︎ report
TIL about the steady-state approximation, used in chemical kinetics. You set the rate of change of a reaction intermediate in the reaction mechanism equal to 0 so that the kinetic equations can be simplified by setting the rate of formation of the intermediate equal to the rate of its destruction. en.wikipedia.org/wiki/Ste…
πŸ‘︎ 17
πŸ’¬︎
πŸ‘€︎ u/dustofoblivion123
πŸ“…︎ Mar 27 2021
🚨︎ report
Here's a copper wire christmas tree undergoing a redox/displacement reaction with a silver nitrate solution. The copper molecules from the wire displace the silver to form copper nitrate. The formation of copper nitrate is what causes the solution to turn blue.⁠ v.redd.it/zo57j6b1p3w61
πŸ‘︎ 76
πŸ’¬︎
πŸ‘€︎ u/regian24
πŸ“…︎ Apr 29 2021
🚨︎ report
So I need a little bit of help on chem lol so what we're supposed to do is balance the equations and then say what type of reaction they are. And the reactions are formation, decomposition, combustion, single replacement and double replacement
πŸ‘︎ 5
πŸ’¬︎
πŸ‘€︎ u/Livia451
πŸ“…︎ Feb 24 2021
🚨︎ report
RuV‐Acylimido Intermediate in [RuIV(Por)Cl2]‐Catalyzed Cβˆ’N Bond Formation: Spectroscopic Characterization, Reactivity, and Catalytic Reactions

Metal-catalyzed acylnitrene transfer reactions are widely proposed to proceed via M(NCOR) intermediates. In their Research Article (DOI: 10.1002/anie.202100668), Chi-Ming Che and co-workers report [Ru(Por)Cl2]-catalyzed highly selective acylnitrene transfer to alkenes, indoles, silyl enol ethers, and C(sp3)βˆ’H bonds to afford aziridines/oxazolines, 3-aminoindoles, Ξ±-aminoketones, and N-acyl amines, respectively, and also experimental and computational evidence that porphyrin-supported Ru(NCOR) intermediates, which belong to RuV-imido species, are involved in these reactions.

https://ift.tt/2TRgsZc

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TomisMeMyselfandI
πŸ“…︎ Jun 22 2021
🚨︎ report
[ASAP] Insights into Reaction Kinetics in Confined Space: Real Time Observation of Water Formation under a Silica Cover

Journal of the American Chemical SocietyDOI: 10.1021/jacs.1c03197

Mauricio J. Prieto, Thomas Mullan, Mark Schlutow, Daniel M. Gottlob, Liviu C. Tănase, Dietrich Menzel, Joachim Sauer, Denis Usvyat, Thomas Schmidt, and Hans-Joachim Freund

https://ift.tt/2Tf37cw

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TomisMeMyselfandI
πŸ“…︎ Jun 08 2021
🚨︎ report
Anti-PEG antibodies: Properties, formation, testing and role in adverse immune reactions to PEGylated nano-biopharmaceuticals pubmed.ncbi.nlm.nih.gov/3…
πŸ‘︎ 33
πŸ’¬︎
πŸ‘€︎ u/mobo392
πŸ“…︎ Dec 24 2020
🚨︎ report
RuV‐Acylimido Intermediate in [RuIV(Por)Cl2]‐Catalyzed C–N Bond Formation: Spectroscopic Characterization, Reactivity, and Catalytic Reactions

Experimental studies including ESI-MS, EPR spectroscopy and KIE, and also DFT calculations point to the intermediacy of a porphyrin-supported RuV(NCOR) species in [RuIV(Por)Cl2]-catalyzed Cβˆ’N bond formation reactions with acyl azides N3COR (up to 99 % yield). The [RuIV(Por)Cl2]/N3COR catalytic method is applicable to various substrates, including alkenes, indoles, silyl enol ethers, and C(sp3)βˆ’H bonds.

Abstract

Metal-catalyzed Cβˆ’N bond formation reactions via acylnitrene transfer have recently attracted much attention, but direct detection of the proposed acylnitrenoid/acylimido M(NCOR) (R=aryl or alkyl) species in these reactions poses a formidable challenge. Herein, we report on Ru(NCOR) intermediates in Cβˆ’N bond formation catalyzed by [RuIV(Por)Cl2]/N3COR, a catalytic method applicable to aziridine/oxazoline formation from alkenes, amination of substituted indoles, Ξ±-amino ketone formation from silyl enol ethers, amination of C(sp3)βˆ’H bonds, and functionalization of natural products and carbohydrate derivatives (up to 99 % yield). Experimental studies, including HR-ESI-MS and EPR measurements, coupled with DFT calculations, lend evidence for the formulation of the Ru(NCOR) acylnitrenoids as a RuV-imido species.

https://ift.tt/3geiGdY

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TomisMeMyselfandI
πŸ“…︎ Jun 01 2021
🚨︎ report
[Chemistry 12 - Reaction Kinetics]: Need help setting up the equation for the average rate of formation
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/THE_THOTTINATOR
πŸ“…︎ May 05 2021
🚨︎ report
Humans develop more slowly than mice because our chemistry is different: Scientists have found that the β€œsegmentation clock”—a genetic network that governs the body pattern formation of embryosβ€”progresses more slowly in humans than in mice because the biochemical reactions are slower in human cells riken.jp/en/news_pubs/res…
πŸ‘︎ 508
πŸ’¬︎
πŸ‘€︎ u/mubukugrappa
πŸ“…︎ Sep 20 2020
🚨︎ report
Reaction formations: What are they? How to differentiate from projection? Overcompensation?

What isn't a reaction formation? When is it a gray area? Any papers? Refutations of the term?

From Wikipedia:

>In a diagnostic setting, the existence of a reaction-formation rather than a 'simple' emotion would be suspected where exaggeration, compulsiveness and inflexibility were observed. For example:
>
>"[r]eactive love protests too much; it is overdone, extravagant, showy, and affected. It is counterfeit, and [...] is usually easily detected. Another feature of a reaction formation is its compulsiveness. A person who is defending himself against anxiety cannot deviate from expressing the opposite of what he really feels. His love, for instance, is not flexible. It cannot adapt itself to changing circumstances as genuine emotions do; rather it must be constantly on display as if any failure to exhibit it would cause the contrary feeling to come to the surface.[3]
>
>Reaction formation is sometimes described as one of the most difficult defenses for lay people to understand;[1] this testifies not merely to its effectiveness as a disguise, but also to its ubiquity and flexibility as a defense that can be utilized in many forms. For example,
>
>"solicitude may be a reaction-formation against cruelty, cleanliness against coprophilia",[2]
>
>and it is not unknown for an analyst to explain a client's unconditional pacifism as a reaction formation against their sadism. In addition,
>
>"[h]igh ideals of virtue and goodness may be reaction formations against primitive object cathexes rather than realistic values that are capable of being lived up to. Romantic notions of chastity and purity may mask crude sexual desires, altruism may hide selfishness, and piety may conceal sinfulness."[3]Even more counter-intuitively, according to this model
>
>"[a] phobia *is an example of a reaction formation. The per

... keep reading on reddit ➑

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TonyStackSullivan
πŸ“…︎ Mar 04 2021
🚨︎ report
Scholl Reaction of Perylene‐Based Polyphenylene Precursors under Different Conditions: Formation of Hexagon or Octagon?

Scholl reaction is a classic method for the synthesis of various polycyclic aromatic hydrocarbons. However, the fundamental reaction mechanisms remain unclear and the products sometimes are unpredictable. Herein, we report the successful synthesis of a planar dibenzo-peri-hexacene derivative ( 2 ) via FeCl 3 -mediated Scholl reaction from a cyclopenta-fused perylene (CP) based polyphenylene precursor ( 1 ). However, an unexpected octagon-containing, negatively curved molecule ( 3 ) was obtained in nearly quantitative yield when 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and methanesulfonic acid (MeSO 3 H) were used. Similar results were observed when two smaller-sized precursors containing one ( 4 ) or two CP units ( 5 ) were tested. The structures of the final products were confirmed by X-ray crystallographic analysis, which also reveal that there is no close p-p stacking between neighbouring p-conjugated skeletons. DFT calculations suggest a radical cation mechanism in the presence of FeCl 3 while an arenium ion pathway for the DDQ/MeSO 3 H mediated Scholl reaction, which can well explain the selective formation of hexagons and octagons under different conditions. The obtained compounds showed tunable optical and electrochemical properties. In particular, their non-aggregative feature endows them moderate-to-high photoluminescence quantum yields, which are desirable for solid-state luminescence devices.

https://ift.tt/2RtqjmT

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TomisMeMyselfandI
πŸ“…︎ May 18 2021
🚨︎ report
β€’Today, we're here with a nuclear fission reaction of uranium - 235 with a neutron. β€’so basically, when uranium - 235 isotope is bombarded with a neutron, it absorbs the neutron and this results in formation of more neutrons in turn.
πŸ‘︎ 23
πŸ’¬︎
πŸ‘€︎ u/ananyahearts
πŸ“…︎ Nov 08 2020
🚨︎ report
Nevermo here-the temple sounds so weird and disturbing. There's a term in psychology 'reaction formation' where one has an unacceptable feeling, but one acts/claims contrary to it. Do you think this is what is happening for many people who claim they 'love the temple' ? Was it like that for you?
πŸ‘︎ 161
πŸ’¬︎
πŸ‘€︎ u/mlperiwinkle
πŸ“…︎ Feb 07 2020
🚨︎ report
I've often wondered if the formation of our universe is a just a hot plasma reaction in someone else's particle accelerator in a time scale relative to us- lonely, sentimental byproducts.
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/scorpyo72
πŸ“…︎ May 01 2021
🚨︎ report
Do we have any lore specifically about the formation of the Human-Sangheili Alliance? Such as the average Joe’s reaction, or a UNSC Marine’s thoughts? Or even the thoughts of the Sangheili?
πŸ‘︎ 27
πŸ’¬︎
πŸ‘€︎ u/curley33
πŸ“…︎ Nov 26 2020
🚨︎ report
RuV‐Acylimido Intermediate in [RuIV(Por)Cl2]‐Catalyzed C–N Bond Formation. Spectroscopic Characterization, Reactivity, and Catalytic Reactions

Metal‐catalyzed C‐N bond formation reactions via acylnitrene transfer have recently attracted much attention, but direct detection of the proposed acylnitrenoid/acylimido M(NCOR) (R = aryl or alkyl) species in these reactions poses a formidable challenge. Herein we report on Ru(NCOR) intermediates in C‐N bond formation catalyzed by [Ru IV (Por)Cl 2 ]/N 3 COR, a catalytic method applicable to aziridine/oxazoline formation from alkenes, amination of substituted indoles, α‐amino ketone formation from silyl enol ethers, amination of C(sp 3 )‐H bonds, and functionalization of natural products and carbohydrate derivatives (up to 99% yield). Experimental studies including HR‐ESI‐MS and EPR measurements, coupled with DFT calculations, lend evidence for the formulation of the Ru(NCOR) acylnitrenoids as a Ru V ‐imido species.

https://ift.tt/3geiGdY

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/TomisMeMyselfandI
πŸ“…︎ Apr 13 2021
🚨︎ report

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.