A Symmetrical Example Conformations of Six-Membered Rings

6 = 90° represents a pseudorotation pathway that connects six equivalent boat forms at 0 = 0, 60. 300° and six equivalent twist-boats at 0 = 30,90. 330°. Six equivalent envelope conformations exist in the northern hemisphere, each lying at 6 = 55° on one of the six arcs connecting the chair and boat forms six inverse envelopes lie in the southern hemisphere at 0= 125°. Similarly, six half-chairs 6 = 50°) and six screw-boats (6 = 68 °) exist on arcs joining the chair and twist-boat conformations, with their inverses at 0 = 130° and 112° respectively on similar arcs in the southern hemisphere. The planar hexagon (Q = 0 and 6,0 indeterminate) occupies the centre of the family of spheres. 

Symmetry Chair Chair Boat Boat Twist Twist 

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