CHEM 2320 Lecture Notes - Lecture 15: Dimethyl Sulfoxide, Heteronuclear Single Quantum Coherence Spectroscopy, Stereochemistry
15 Feb 2017
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Document Summary
Nuclei possessing spin immersed in a static magnetic field and exposed to a second oscillating field . Ernst structural studies of proteins and other bio macromolecules. Protons related bu symmetry ( plane or axis. Protons . they together are no coupling expected . than. The protons on the same carbon mall have different chemical shifts because. Hut hey are not l :d da da. : 4 symmetry relating constants neither one on of to 4 . Center thee is no plane on the molecule. Break it apart into the general ranges . he mind. However there"s a way to better detect these things th - the coupling. Triangle intensities second order coupling when the chemical is shift relative to the big coupling first constant order fwwpling constant. Cowser slants like theymove closer w as together. Though it looks coupling quartet like a same chemical shift turning into a single .
