Tag: NMR

Master’s Quiz

Today I translated our introductory quiz for Master’s students into English. Most of the translation was done by Google Gemini and looks solid. If you spot any mistakes or misleading phrasing, please feel free to reach out.

13C chemical shift calculations

Previously, I’ve offered a simple increment system for various aromatic systems within my spectroscopic tools. Now, I’ve fulfilled a long-held desire and created my own method for calculating [13]C chemical shifts for all types of organic compounds. The basis is my devised DCode, an alternative to HOSE code. Crucially, the DCode is stereoselective from the …

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Basic Course in structural analytics

I have a german quiz with around 200 Questions about NMR, MS und IR- Spectroscopy. This quiz uses quiz-academy and the webclient should be automaticaly use the browser language. Please report problems or errors to me (steffen@sthomas.de). Individual Parts can you find using the menü on the top of this page!

Valin (Val, V)

NMR- Data [1] of valine: Atom Typ chemical shift [ppm]1 Random Coil chem. shift 3 Random Coil chem. shift 4 average σ5 entries2 H H  8.28 0.687 55381  8.03  8.02 Hα H  4.172 0.646 42441  4.12  4.44 Hβ H  1.976 0.474 39770  2.08  2.06 Hγ1 H  0.82 0.35 39325  0.94  0.97 Hγ2 H  0.80 0.462 38582  0.93 …

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Tyrosine (Tyr, Y)

NMR- data [1] of tyrosine: Atom Atomtyp chemical shift [ppm]1 Random Coil chem. shift3 Random Coil chem. shift4 average standard deviation entries2 H H  8.304 0.739 25862  8.12  8.10 Hα H  4.615 0.569 19854  4.55  4.84 Hβ2 H  2.893 0.487 18588  3.03  3.05 Hβ3 H  2.831 0.505 18171  2.98  2.89 Hδ1 H  6.913 0.387 16267 …

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