
Lucio F. answered 04/05/19
Physical Chemistry MS+PhD (UC San Diego) + Post-doc (UC Berkeley)
No. The chair (1), half-chair (2), twist-boat (3) and boat (4) conformation are possible for cyclohexane. A crown conformation is defined as a saturated cyclic molecular entity, containing an even number (≥8) carbons. 6 is not greater than 8.