Home work Physical and Theoretical Chemistry IV

- Molecular Spectroscopy -

Discussion  Fr 28.6.2002 at 10:30,  HR30.1 (Hagenring 30)
http://www.pci.tu-bs.de/aggericke/PC4/Uebungen/


Home work 9        symmetry elements and point groups
 
 

Exercise 1:

The molecule CH3Cl is of C3v symmetry. What are the symmetry elements of this point group and where are they located in CH3Cl ?
 

Exercise 2:

What is the point group of the following bodies:
a) a isosceles triangle,
b) a equilateral triangle,
c) a (round) pen before it is sharpened,
d) a sharpened pen,
e) a propeller with three flat vane,
f) a (typical) table,
g) a human (idealized)?
 

Exercise 3:

Determine the symmetry elements and the point group of the following molecules:
NO2 (bend), CH3Cl, CCl3H, CH2=CH2, cis-CHCl=CHCl, trans-CHCl=CHCl, naphthalene, chlorbenzene.