[gmx-users] cation-pi interaction

[larif sofiene]

Greeting
I'm trying to find the angle between a cation and a benzene cycle from a MD
trajectory. I'm really confused  is there a tool for such calculations ?
because i must find angle using a plan passing by the center of the cycle
and vector (from cation to the mass center of the benzene cycle).
How can i do it please ?.
thanks in advance.