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 .