Vicinal Hydrogens

Vicinal hydrogens are the hydrogen atoms on adjacent atoms in an organic molecule.

eg. 1:


H1 and H2 in 1 are on adjacent carbon atoms.  Therefore, they are vicinal hydrogens.

eg. 2:



H1 and H2 in 2 are on adjacent carbon atoms.  Therefore, they are vicinal hydrogens.

see also geminal hydrogens

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