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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 02/10/2026

Great example of ASIS! Has few examples too. )

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 20/08/2026

Tell me you don’t read the safety warnings without telling me you don’t read the safety warnings. #nmrchat

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 05/05/2026

New Nucleus Unlocked: 19-Phosphorus. The chemical shift is just a flat line of pure confusion #nmrchat #chemistry #organicchemistry #spectroscopy

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 16/04/2026

What’s inside your Coke Zero? 🧪🥤 Ever wondered what a sugar-free drink looks like at the molecular level? This is a 600 MHz ¹H NMR spectrum of Coca-Cola Zero (Ukrainian edition). Even without sugar, the chemistry is dense! Here’s the breakdown: 👇🧵 #nmr #nmrchat #dietcoke

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 10/04/2026

NMRMultiplet In saturated 6-membered rings, the position of a proton dictates the entire splitting pattern. Since this proton is axial, the coupling tree reveals a classic set of interactions: 🧵👇 #nmr #nmrchat #chemistry #organicchemistry

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 03/04/2026

The results are in! 🧪 The correct structure for this #NMRweekend challenge is A. The most reliable way to distinguish between N-alkylated 2-pyridones and O-alkylated 2-alkoxypyridines lies in the coupling constants of the alpha-protons (H6).🧵👇

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 28/03/2026

It’s #NMRweekend time! 🧲⁉️ Can you identify the correct structure based on the spectrum? Drop your answer in the comments 👇. I’ll post the full explanation in a few days. 😉 #nmr #nmrchat #chemistry #quiz

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 15/02/2026

Creatine: From Molecule to Muscle 🧬💪 What you’re looking at is the “molecular ID card” of one of the most researched supplements in the world, captured via NMR spectroscopy. 🧵👇 #nmr #spectroscopy #sportsupplements #creatine

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 16/07/2025

🍋 ¹H NMR of Lemon Juice Freshly squeezed science! This proton NMR spectrum of lemon juice reveals a rich mixture of natural metabolites. The intense multiplets around 2.6–2.8 ppm are from citric acid, the dominant organic acid in lemon. #NMR #nmrchat #chemistry 👇🧵

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 10/06/2025

My standard speed on this QNP-equipped Bruker is 100–150 routine ¹H spectra per hour (not ideal quality, of course — Z1 + Z2). Most folks don’t believe me 🤣

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 15/03/2025

It’s #NMRweekend ⁉️🧲 Write your answers in the comments section 👇. Note: This is an experimental spectrum. The explanation for the challenge will be published in a few days 😉. #nmr #nmrchat #chemistry #organicchemistry #spectroscopy #quiz #nmrchallenge #nmrquiz

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 08/03/2025

Fluorine in bicyclic molecules looks mind blowing 🤯. #nmr #nmrchat #chemistry #science

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 07/03/2025

Multiplet of the week 🧲 ᗑ. This particular proton has four couplings to the ¹H nuclei of two diastereotopic CH₂ groups (³J = 4.95, 5.66, 6.00, and 7.28 Hz) and a ³J coupling of 6.63 Hz to the methyl protons. #nmr #nmrchat #spin #coupling #chemistry #organicchemistry #spectroscopy

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 06/03/2025

Just insane 🤯. MNova calculated it as “m” 🙂. But I didn’t give up and extracted all couplings separately 👌. Its CH signal at the chiral centre bonded to 2XCH₂ and CH₃ 🤌🤌🤌 #nmr #nmrchat

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 20/02/2025

When my cat wants attention, he just lies down on my laptop while I’m working. ) #nmrchat #nmr

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 03/12/2024

An awful sample with not that bad ¹H 🤷🏻‍♂️ #nmr #nmrchat

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 02/12/2024

Me like 🤔😕😐🤷🫤😵‍💫💫🤣

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 28/11/2024

Check out this monster 👿 ddqdd. The guys from CT convinced me to try this analysis, and it works great! However, from a practical point of view, I have to say I’m satisfied with tqt. 👇🧵

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 27/11/2024

Love when auto multiplet analysis works 👌🫶 #nmr #nmrchat

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Andrii Kozytskyi @nmrspectroscopy.bsky.social · 26/11/2024

What’s up everybody? What’s going on here ? #nmr #nmrchat

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