Lecture (1-24)

Lecture (1-24) - 13.7 Uses of 13CNMR Spectrometry Provides...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
13.7 Uses of 13CNMR Spectrometry Provides details of structure Example: product orientation in elimination from 1-chloro-1-methylcyclohexane Difference in symmetry of products is directly observed in the spectrum 1-methylcyclohexene has five sp3 resonances (δ) Summary of 13CNMR Information from 13CNMR: Number of peaks = Number of different carbons Chemical shift = Electronic Environment of the carbon DEPT experiment = Number of attached protons ****PROBLEM 13.12 13.8 1H NMR Spectroscopy and Proton Equivalence Each electronically distinct hydrogen in a molecule has its own unique absorption so 1H NMR shows how many kinds of nonequivalent hydrogens are in a compound Theoretical equivalence can be predicted by seeing if replacing each H with “X” gives the same or different outcome Equivalent H’s have the same signal while nonequivalent are different o There are degrees of nonequivalence. Nonequivalent H’s
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

Lecture (1-24) - 13.7 Uses of 13CNMR Spectrometry Provides...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online