nmr_spectroscopy / Organic Chemistry ⌬🇺🇦 @NMRspectroscopy Twitter profile

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

11 months

The difficult life of an organic chemist 😑. #nmr #nmrchat #Chemistry #OrganicChemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

☝🏻Don't expect a good spectrum if you have air bubbles 🫧 in your sample ! Shimming won't help! . #nmr #nmrchat #chemistry #organicchemistry #spectroscopy #chemie #quimica #medicalchemistry #farma #farmacia

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🔬🧲I've recently encountered a very illustrative example of the solvent effect on the appearance of ¹H NMR spectra. ☝️If your spectrum looks poor in one solvent, try another; sometimes, the difference is remarkable. #NMR #nmrchat #Chemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Love MNova Auto Multiplet Analysis ❤️. @Mestrelab #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

4 months

NMR of Coca-Cola 😁. Depending on where you are in the world, the company uses either high fructose corn syrup or cane sugar. In ¹H and ¹³C NMR, you can easily find glucose, fructose, and sucrose. #nmr #nmrchat #cola #cocacola #chemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

It is often happens that proton spectra show either overlap of signals or higher-order effects because of small chem. shift differences. In this cases a simple changing of solvent or addition of aromatic solvent can dramatically simplify the spectrum 👇🏻 #nmrchat #NMR

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 months

🍌 ¹H NMR Spectroscopy of Banana! Ever wondered what’s inside a banana at the molecular level? We have acquired the 1H NMR spectrum of a water banana extract in DMSO-d6. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

ℹ️🧲 Here are 9 essential facts about ¹³C NMR spectroscopy you have to be aware of before starting the experiment. 📝Source: Essential Practical NMR for Organic Chemistry by S.A.Richards and J.C.Hollerton second edition, Wiley, 2023 and my experience). #nmrchat #nmr #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

🪄If you need to resolve some signals in your 1H NMR spectrum, it is often enough to add some other solvent ☝🏻. As a rule - Benzene-D6 is used because of it specific electronic properties 👌. #nmr #NMRchat #chemistry #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🤯These are the 1H NMR spectra of the same substance but in slightly different solvents 🧪. Why so different❓ Write your assumptions 📝 in the comments👇. #nmr #nmrchat #chemtwitter #OrganicChemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

Each week I’ll post multiplets I found interesting. Today’s selection - doublet of doublets of triplets of doublets 🤯. Check out ³J H-F 19,7 Hz, which is much stronger than other J H-H. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

7 months

An illustrative example of the need to qualitatively mix NMR samples ❗️🧲 #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

met such students 🤣😂

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

A little NMR Monday problem. Remember - ☝️🧲 using only ¹H NMR! #nmr #nmrchat #chemtwitter #OrganicChemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

¹H -4 ppm !!!🤯 An extreme example of anisotropy. ℹ️Source: Essential Practical NMR for Organic Chemistry. S. A. RICHARDS AND J. C. HOLLERTON #nmr #nmrchat #chemistry #organicchemistry #metacyclophane

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲❗️📚 Midweek NMR challenge. Use the poll bellow 👇 #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Trifluoroacetic acid (TFA) can help to acquire Carbon spectra of heterocyclic compounds with exchangeable protons. TFA protonates nitrogen atoms of Het-Ar and suppress proton exchange, which makes Carbon signals narrower. #nmr #nmrchat #Chemistry #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

A one-picture-guide on “How to piss off an NMR spectroscopist” #nmr #nmrchat #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲❗️Chiral centre is the key! The answer to the previous post. #nmr #nmrchat #chemtwitter #OrganicChemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

The difference in 1H spectra of ethylene glycol (conc.) in DMSO-d6 and CDCl3. Details: DOI: 10.1002/mrc.1512 #nmr #nmrchat #chemistry #organicchemistry #chemie #quimica

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

11 months

The best cake I’ve ever had! 🎉 #nmr #nmrchat #magneticresonance

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Do you like when Auto Multiplet Analysis works? #nmr #nmrchat #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

☝️🧲 This information can be quite useful when the question is, for example, «tetrazole or azide?» or when you're asking, «Is there an azide group in my substrate?» #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

☝️🧲❗️another piece of useful information on ¹H NMR. Anisotropy of acetylene group. #nmr #nmrchat #chemistry #organicchemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲🔥❗️Plane of symmetry makes cis isomer optically inactive (meso form, achiral). Trans isomer has C2 axis of symmetry which doesn’t cancel its optical activity. #nmr #nmrchat #chemtwitter #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲⁉️ Here is the question. Why? #nmr #nmrchat #Chemistry #chemtwitter #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

#nmr #nmrchat #organicchemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

9 months

Happy Valentine’s Day!!! Molecules are hypothetical), but the NMR solution is not that simple) Have fun! 💕 NOTE: OH’s are not observed in D₂O! #valentines #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

The answer to the previous challenge. The right one was ¹H and/or ¹³C. 🔑🧲 Key thing about ¹H NMR is that for both molecules corresponding signals appear as singlets(!) because of the symmetry, but their ¹³C satellites are different. #nmr #nmrchat #OrganicChemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Hi, NMR enthusiasts 👋. A little NMR Friday challenge 🧲⁉️. Use QUIZ below or stay tuned for the answer 😉. Quiz👇. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

#nmrchallenge 🧲❓Share your thoughts in the comments section👇. The spectrum is simulated so do not overthink it 😉 #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Saturday NMR challenge 🧐🧲. Use the quiz below 👇 #nmr #nmrchat #chemistry #organicchemistry #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Since the pyr. ring has three double bonds, 6 p-electrons exist, which are sufficient for aromatic ring formation without involving the lone pair electrons of the N atom ✅. Since the lone pair electrons remain free, quat. salts retain the aromaticity❗️. #nmr #nmrchat #Chemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

If rotamery is a real problem for you, e.g. for structure elucidation - try just to change the solvent 😉. From my experience - it is better to use DMSO-d6 instead of CDCl3 in most cases for this purposes☝️. #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

An example of how one problem can be solved in several ways. #nmr #nmrchat #chemtwitter #chemistry #spectroscopy #Ukraine #enamine #Kyiv

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

A simple Saturday task for our little NMR community 😉. Write your answer with explanations in the comments section 👇🏻 #nmr #nmrChat #chemistry #quimica #chemie #organichemistry #spectroscopy #Kyiv #Ukraine #Enamine

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Hi, #nmr community! How about 1H signal at 81ppm? #NMRchat #chemtwitter #OrganicChemistry #scicomm

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

6 months

Multiplet of the week 🧲 ᗑ. ddt. #nmr #nmrchat #chemistry #organicchemistry #spectroscopy #spin #coupling

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

ℹ️🧲 interesting case of diasteretopic protons at low temperatures. #nmr #nmrchat #Chemistry #organicchemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 months

A piece of useful information on ¹H NMR of exchangeable protons (any protons that exist in a state of dynamic equilibrium with any free water). #nmr #nmrchat #chemistry #organicchemistry #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

5 months

Did you know about this easy way to identify exchangeable protons (OH, NH, SH etc.) in your ¹H NMR? Details in the picture 😉 #nmr #nmrchat #chemistry #organicchemistry #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

The answer to the prev. post. The reason for the "awful" 🤯 spectrum in the case of dry DMSO is the presence of strong intra- and intermolecular hydrogen bonding , which leads to the formation of a large number of different species in the solution. #nmr #nmrchat (1/2)

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Meet the Sunday NMR challenge ⁉️🧲 Use the poll below or stay tuned for the answer with the explanation) #nmr #nmrchat #chemistry #challenge #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

6 months

🧲 Spin coupling constants in pyridine ring. This info can be very useful (especially ³J) in structure elucidation of substituted pyridines or quinolines. #nmr #nmrchat #chemistry #spectroscopy #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲 Magnetize your samples! When acquiring large amounts of 1H's in routine mode, it's important to consider that some protons may have long T₁ relaxation times, which can impact their integrals. ☝️ #nmr #nmrchat #chemtwitter #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

7 months

Multiplet of the week: doublet of quartets of doublets. Example molecule - dexamethasone drug. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

🎄⁉️🧲 The last NMR challenge this year 😎. Write your thoughts in the comments section. Also suggest what solvent for the compounds would be the best choice. HINT: both molecules have one CH signal in ¹H spectrum (singlet) 😉. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

5 months

🧲ᗑ Multiplet of the week. ddt. #nmr #nmrchat #chemistry #organicchemistry #spectroscopy #spin #coupling #phosphorus

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

#nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

Multiplet of the week. Doublet of heptets (or doublet of septets if you prefer). NOTE: the multiplet was analysed in auto mode using MNova software. #nmr #nmrchat #Chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Midweek NMR challenge🧲. There was similar problem on the blog. Write your variants in the comments section below 👇 #nmr #nmrchat #Chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

Continuation of the previous post. The easiest solution of this problem is salt preparation and 1H spectrum analysis in DMSO-d6 ☝🏻. Save and Share! 😉 #nmr #nuclearmagneticresonance #nmrchat #chemistry #chemie #quimica #Ukraine #Kyiv #enamine

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

The answer to the previous tweet. Many of you chose NOESY. It is right too but not the most appropriate) 🙂 #nmr #nmrchat #nuclearmagneticresonance #nmrspectroscopy #chemistry #organicchemistry #chemie #quimica #Enamine #Kyiv

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

9 months

ℹ️ Here is one of the tricks I often use in my NMR structure elucidation practice. ❗️Inter- or intramolecular proton exchange can be a real problem for a heterocyclic aromatic compound that has plenty of exchangeable acidic protons (OH, NH, CONH, etc. (1/2) #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

⁉️🧲 Weekday NMR challenge. Write your answers/thoughts in the comments section, or stay tuned for the answer 😉. #nmr #nmrchat #Chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Another weird molecules with interesting F-F through-space spin couplings 🧲 #nmr #nmrchat #Chemistry #OrganicChemistry #fluorine

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

☝️The most obvious solution is not always the right one! Why is the NOESY (1D and 2D) experiment not suitable in this particular case❓Share your thoughts in the comments👇 or stay tuned for the next post😉. nOe - nuclear Overhauser effect. #nmr #nmrchat #chemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

4 months

🧲 ᗑ The most interesting multiplet I’ve seen recently. This one particular Proton at 2.41 ppm has 5 different couplings: ³J to Fluorine, geminal ²J, 2*³J and ⁴J to the protons of the cyclobutane ring. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Thank you, Topspin! It’s really helpful 👍 #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

🧲⁉️Weekday NMR challenge! Write your answers in the comments section or use the poll below. #nmr #nmrchat #chemistry #spectroscopy #nmrchallenge

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲☝️The substitution Test for Equivalence of Protons #nmrchat #nmr #chemtwitter #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🔬🧲 Electronic structure affects not only the ¹H signals of pyridine but also those of ¹⁹F, and in a more dramatic way. Here are the ¹⁹F spectra of various fluoropyridines ☝️. NOTE: here R-aliph. The same for each. #spectroscopy #nmr #NMRchat #chemtwitter #OrganicChemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Even more dramatic examples are coming up) stay tuned 😉. NMR of fluorinated organic compounds 🧲🔥 #nmr #nmrchat #fluorine #organicchemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

🧲⁉️ Here is a simple Friday #NMR problem for our community 😌. Substituted isoxazole. Explain your choice in the comments section 👇. #organicchemistry #nmrspectroscopy #nmrchat #chemistry #quimica #chemie #Ukraine #scicomm

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

❗️🧲 The solution to the previous challenge. All details in the picture. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

☝️🧲 The solution to the prev. challenge. In the trans isomer, the fluorine atoms occupy the same chemical environment. In the cis isomer, one of the fluorines is closer to both OH groups, while the other is closer to both methyne protons. So, the right answer was ¹⁹F NMR 😉.

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

¹H-¹³C HSQC NMR experiment. The key technique for structure elucidation purposes. Basic NMR experiments series. Part 4/6. Stay tuned for HMBC and NOESY. If you’re not comfortable with this format - find the posts on IG or TG. #nmr #nmrchat #chemtwitter #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

There are even more dramatic cases 🤌 #nmr #nmrchat #chemistry #organicchemistry Details: Harald Günther NMR spectroscopy or

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

11 months

🧲⁉️🧲 Midweek NMR challenge. Use the poll below 👇 #NMR #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

❗️🧲 The solution to the previous challenge is ¹H NMR experiment. Triazole ring in the top molecule is symmetrical (both protons are chem. eq.); CHs of triazole in the bottom molecule chem. ineq. (different position relative to Arylated Nitrogen). #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

¹H NMR of aromatic [18]annulene. Check out the dependence of the ¹H signals. #nmr #nmrchat #Chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

#nmr #nmrchat 🤷🏻‍♂️😬

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

🧲📚 For those who are wondering about triplet of ammonium chloride in ¹H NMR spectra. • #nmr #nmrchat #chemistry #organicchemistry #ammonium #chloride #magneticresonance #spectroscopy

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

170 Hz Fluorine-Fluorine spin coupling 🔥🧲 #nmr #nmrchat #chemtwitter #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Ref. deconv. is a technique that able to remove distortions that affect all peaks in a spectrum in the same way e.g. bad shimming. The key idea is finding the distortion function of a ref. signal (singlet) followed by the whole .fid's correction using this function. #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

5 months

Our NMR lab. Situation. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

29 days

¹H NMR of Milk 🧲🥛: This is the Proton NMR spectrum of milk without any specific sample preparation. 🔍 However, with modern NMR techniques and methodologies, it is now possible to analyze dozens of metabolites in this product. 1/ #nmr #nmrchat #milk #metabolomics

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🔗🧲 CF₃ - aldehyde through space ¹H-¹⁹F coupling in Ph ring. ☝️The common challenge is to acquire qualitative ¹H spectrum to detect such couplings. #nmr #fluorine #nmrchat #Chemistry #organicchemistry #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

8 months

Multiplet of the week. Today’s selection - ¹⁹F signal of endo-Fluorine [2.2.1] bicycle. #nmr #nmrchat #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

There is a tradition on this page to spoil your weekend with NMR brainteasers 🤣. This was a question from subscribers ❤️. Write your thoughts in the comments section or use the poll below 👇

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

⁉️Do you frequently use Boc protecting group? Check out this example of its impact on rotamery in cyclic amines using 13C NMR spectroscopy! ✏️📝🧪 #nmr #nuclearmagneticresonance #nmrchat #organicchemistry #chemistry #spectroscopy #farma #medicalchemistry #chemie #quimica

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

The answer to the previous challenge. #nmr #nmrchat #Chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

7 months

🧲 ᗑ Multiplet of the week. Triplet of triplets. #nmr #nmrchat #chemistry #spectroscopy #organicchemistry #spin #coupling Can you assign the couplings?

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🧲❗️1951. The first published high resolution 1H. #nmr #nmrchat #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

Even during the #warinukraine one can find time for NMR. @tdwclaridge

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

9 months

🧲☝️ Effects of EWG and EDG on ¹H NMR of benzene ring. #chemistry #organicchemistry #nmr #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

9 months

Weekday NMR challenge ❗️🧲. Here is the HSQC spectrum (1-bond ¹H-¹³C correlation) of the compound. What’s the structure of the compound? Explain your reasoning or use the poll👇. #nmr #nmrchat #chemistry #organicchemistry

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151

nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

11 months

🔵🔆🟢 Finally found a blue sample with green fluorescence #nmr #nmrchat #chemistry #spectroscopy #organicchemistry

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154

nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

Interesting example of A2X2 vs AA’XX’ spin systems. #nmr #nmrchat #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

11 months

☝️🧲 the solution to the previous challenge. Part I. ¹³C NMR. #nmr #nmrchat #chemistry #organicchemistry

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145

nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

🧲☝️ The answer to the previous post. Typically, such ⁴J couplings are not observed clearly (as in this predicted spectrum) but rather broaden the corresponding peaks. • #nmr #nmrchat #nmrchallenge #chemistry #organicchemistry

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

3 years

Ok, folks! Here is another easy task for you) 😜 . Write in comments section with explanation 😉 #nmr #nmrchat #chemistry #organicchemistry #science #Ukraine #Kyiv

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

2 years

Before problem solving- choose the right solvent 😉. Looking at HNMR of the same substrate in different solvents is calming 😌, isn’t it? 👀 #nmr #nmrchat #chemistry #spectroscopy

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149

nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

Oops 😬. A little too much #nmr #nmrchat #chemtwitter

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

1 year

🗿 . #nmr #nmrchat #Chemistry #OrganicChemistry #chemtwitter #Oppeneheimer #BarbieMovie

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

7 months

Multiplet of the week ᗑ🧲. Is it cis or trans proton relatively to Aryl? 😉 #nmr #nmrchat #chemistry #organicchemistry #spectroscopy #spin #coupling

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

9 months

The craziest molecule I’ve seen recently: @EnamineLtd @MykhailiukChem ‘s group chemists push the boundaries of organic synthesis literally every day. Such molecules are known to have strong “W”-like ⁴J(H-H). In this case it is ~9 Hz. #pharma #drugdiscovery #nmrchat

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nmr_spectroscopy / Organic Chemistry ⌬🇺🇦

@NMRspectroscopy

10 months

🧲📚 Well-known examples of magnetic equivalence or nonequivalence: 1,1- difluoroethylene and 1,1-difluoroallene. #nmr #nmrchat #chemistry #organicchemistry