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Unimolecular Dissociation of C6H6-C6Cl6 Complex and Effect of Mode-Mode Coupling

Himashree Mahanta1, Amit K Paul1

  • 1Department of Chemistry, National Institute of Technology Meghalaya, Shillong 793003, Meghalaya, India.

The Journal of Physical Chemistry. A
|July 1, 2021
PubMed

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The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
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A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
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