NMR Multiplicity and Proton Signals

These flashcards cover key concepts related to NMR multiplicity and the interpretation of 1H NMR spectra, particularly focusing on proton signals, splitting patterns, and chemical shifts.

The multiplicity of a methyl proton signal is __.

Determined by the number of neighboring protons plus one.

According to the n+1 rule, if a proton has n neighboring protons, its signal will be __.

n+1 peaks in the NMR spectrum.

In NMR, spin-spin coupling accounts for __.

The interaction between neighboring magnetic nuclei that affects peak splitting.

Chemically equivalent nuclei in NMR are __.

Nuclei that are in the same chemical environment and lead to a single signal in the spectrum.

The chemical shift in NMR is influenced by __.

Electron density around the nuclei affected by anisotropy.

A doublet in NMR indicates that a proton is coupled to __.

One neighboring proton.

The multiplicity of an aromatic proton peak typically appears as __.

A multiplet due to complex coupling.

A peak in NMR corresponding to protons labeled as a, b, and c predicts __.

The splitting pattern based on neighboring protons.