CCL: Dipole derivative unit vector



 Sent to CCL by: "Gabriela  Arias De la Rosa"
 [gabriela.arias]=[yorkmail.cuny.edu]
 Can anyone please tell me what is the purpose of a Dipole derivative unit
 vector? I am using Gaussview
 to analyze vibrational modes and I saw that function, but I am not sure for what
 this function is used.