Worksheet: COSY NMR Spectra
In this worksheet, we will practice using 2D correlation spectra to determine which protons in a compound show significant spin–spin coupling.
Q1:
Fill in the blank: In a COSY spectrum, the dark spots along the diagonal .
- Aallow distinctions to be made between heteronuclear coupling constants
- Bgive the most structural information because they differentiate between different hybridizations
- Cdo not yield structural information because they correspond to the same peak on each coordinate axis
- Ddo not give any structural identification because they are too intense to be deconvoluted