Plane of symmetry in alphabet N

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1. Apr 1, 2016

Elena14

My teacher says that "N" has no plane of symmetry(POS). But shouldn't the plane shown with blue be POS?
I understand that a plane of symmetry bisects a molecule into halves that are mirror images of each other. For this reason, this plane shown here should be the POS. Where am I wrong? View attachment 98339

2. Apr 1, 2016

micromass

Attachment doesn't show.

3. Apr 1, 2016

Joshy

I'm not seeing it. The attachment isn't working, but I tried a few direct approaches, and I am assuming you are talking about $\sigma_v$ operation: