WEB TUTORIAL - Group Theory

H2O Worked Example

It may help to follow this tutorial whilst looking at The Flow Diagram to follow the process of arriving at the point group.
water

Help

sigmav is in the same plane as the highest axis of rotation and passes through the bonds of the molecule. In the case of water, there is a plane of symmetry through all of the bonds as shown:

benzene sigma h

Is there a sigmav plane of symmetry present?
YES
NO