Andrii Kozytskyi
@nmrspectroscopy.bsky.social
The author of the @nmr_spectroscopy blog on IG/X/TG/LI etc.
Zoom-ins help uncover the fine structure of these crowded regions — a great example of the complexity of natural mixtures captured by NMR.
July 16, 2025 at 10:06 PM
Zoom-ins help uncover the fine structure of these crowded regions — a great example of the complexity of natural mixtures captured by NMR.
The region between 3.0–5.3 ppm is packed with signals from sugars like glucose and fructose.
You can also spot additional small molecules — amino acids, other organic acids, and possibly traces of aroma compounds — especially in the aliphatic region (0.5–2.5 ppm). 👇🧵
You can also spot additional small molecules — amino acids, other organic acids, and possibly traces of aroma compounds — especially in the aliphatic region (0.5–2.5 ppm). 👇🧵
July 16, 2025 at 10:06 PM
The region between 3.0–5.3 ppm is packed with signals from sugars like glucose and fructose.
You can also spot additional small molecules — amino acids, other organic acids, and possibly traces of aroma compounds — especially in the aliphatic region (0.5–2.5 ppm). 👇🧵
You can also spot additional small molecules — amino acids, other organic acids, and possibly traces of aroma compounds — especially in the aliphatic region (0.5–2.5 ppm). 👇🧵
UPD ✅: The correct answer is C. The methyl group appears as a doublet, indicating coupling to a CH (eliminating structure A). The aldehyde signal is also a doublet with ³J = 1.5 Hz, indicating coupling to a CH (eliminating structure B).
March 19, 2025 at 10:35 PM
UPD ✅: The correct answer is C. The methyl group appears as a doublet, indicating coupling to a CH (eliminating structure A). The aldehyde signal is also a doublet with ³J = 1.5 Hz, indicating coupling to a CH (eliminating structure B).
Spin coupling of fluorine to 4 chemically inequivalent Hydrogens
March 9, 2025 at 11:08 PM
Spin coupling of fluorine to 4 chemically inequivalent Hydrogens