For example , the following hydrogen atom migration is of order [ 1,5 ] , attained by counting counterclockwise through the π system , rather than the [ 1,3 ] order designation through the ring CH2 group that would mistakenly result if counted clockwise .
For example , the following hydrogen atom migration is of order [ 1,5 ] , attained by counting counterclockwise through the π system , rather than the [ 1,3 ] order through the ring CH2 group that would mistakenly result if counted clockwise .