“…Conformers VIII and IX , among the least abundant ones, show one angle with larger values of 119.2° and 120.3°, respectively. Bond angles are similar to those of cyclooctanone and cyclododecanone and not expected to contribute significantly to energy differences between conformations . The dihedral angles of the most abundant conformer are, in their majority, very close to the ideal 60°, −60° (gauche), and 180° (anti).…”