Geminal Hydrogens

Geminal hydrogens are the hydrogen atoms on the same atom in an organic molecule.

eg. 1:



H1, H2, and H3 in 1 are on the same carbon atom.  Therefore, they are geminal hydrogens.

eg. 2:



H1 and H2 in 2 are on the same carbon atom.  Therefore, they are geminal hydrogens.

see also vicinal hydrogens

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