Guide to Analysis: [1] This is the combined class NMR sample [2] The sharp singlet at 7.26 = CDC13 [3] In your lab report: use SDBS to assign peaks a, b, c, and d in the spectrum shown below. "d" is a very broad singlet (Note: SDBS predicts"d" at a different location) [4] The NMR predictor "NMRDB" is not useful with this molecule. It assumes the "halves" of benzimidazole act differently and wrongly predicts the aromatic CHs.

Guide to Analysis: [1] This is the combined class NMR sample [2] The sharp singlet at 7.26 = CDC13 [3] In your lab report: use SDBS to assign peaks a, b, c, and d in the spectrum shown below. "d" is a very broad singlet (Note: SDBS predicts"d" at a different location) [4] The NMR predictor "NMRDB" is not useful with this molecule. It assumes the "halves" of benzimidazole act differently and wrongly predicts the aromatic CHs.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL4: Proton (1h) Nmr Spectroscopy

Section: Chapter Questions

Problem 23CTQ

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