Usage examples (11)

• Having three carbon and three nitrogen atoms in a six-membered ring
• The rigid linear molecules used contain aromatic six-membered rings as well as carbon–carbon triple bonds.
• Professor Hassel's elegant work on six-membered rings, carried out with ever increasing precision, has laid a solid foundation for a dynamic chemistry in three dimensions.
• Oslo dealt with inorganic chemistry, but from 1930 onwards his work was concentrated on problems connected with molecular structure, particularly the structure of cyclohexane...