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Nuclear magnetic resonance (NMR) spectroscopy. Part II
Consists of...
Proton NMR spectrum of ethanol
When a coupling occurs?
Coupling effect
High-resolution proton NMR spectra
Types of multiplet
Doublet and triplet
Quartet and other multiplets: 'n + 1' rule
Coupling patterns: coupling with equivalent hydrogen atoms
Spectrum of unknown compound
Proton NMR spectrum of 1-chloropropane
Proton NMR spectrum of propanal
Coupling patterns: coupling with non-equivalent hydrogen atoms
Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours
Coupling patterns: hydrogen atoms on oxygen and nitrogen
A proof for rapid exchange of hydrogen atoms in hydroxyl groups
Chemical shift and electronegativity
Representative values of chemical shifts
Ranges of chemical shifts for hydrogen atoms found in organic molecules
Chemical shift and molecular structure
Chemical shift for organic molecule
Chemical shift for organic molecule
Chemical shift for organic molecule
Proton NMR spectrum of compound A
Why are hydrogen atoms bonded to sp2 carbon atoms deshielded?
What information can we get from a proton NMR spectrum?
Structure determination using proton NMR spectroscopy: an example
Uses of proton magnetic resonance
MRI