[mr_david_todd]

Hey

Im doing the above title course and was wondering if there is any thread already on the forum with some info as it is very tricky at times to visualise the compounds in question in 3D.

I know the operators:

E is identity (all molecules have this)
C_n is the rotation axis
sigma is the mirror plane (reflect point)
i is the inversion centtre
S_n is the rotation reflection axis

Depending on which operators are present the molecule will fall into one of these point groups:

C_s, C₂, C_2v, C_2h, D_2h, C_3v and D_3h

E.g. For CH₃Cl

would be C_3v

Thanks for any help,
Cheers, Dave

[Mitch]

No, we don't have a thread on it. Although, I really should write a parctical guide on the subject.