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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-7761.611358
Energy at 298.15K-7761.621131
Nuclear repulsion energy805.136933
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at mPW1PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3224 3077 1.48      
2 A1 547 522 0.35      
3 A1 228 218 0.00      
4 E 1199 1144 39.24      
4 E 1199 1144 39.27      
5 E 666 636 123.01      
5 E 666 636 122.95      
6 E 155 148 0.00      
6 E 155 148 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4019.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3835.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/6-311G*
ABC
0.04102 0.04102 0.02082

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.515
H2 0.000 0.000 1.596
Br3 0.000 1.849 -0.045
Br4 1.601 -0.925 -0.045
Br5 -1.601 -0.925 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08131.93201.93201.9320
H21.08132.47222.47222.4722
Br31.93202.47223.20303.2030
Br41.93202.47223.20303.2030
Br51.93202.47223.20303.2030

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.831 H2 C1 Br4 106.831
H2 C1 Br5 106.831 Br3 C1 Br4 111.978
Br3 C1 Br5 111.978 Br4 C1 Br5 111.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.590      
2 H 0.350      
3 Br 0.080      
4 Br 0.080      
5 Br 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.998 0.998
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.334 0.000 0.000
y 0.000 -60.334 0.000
z 0.000 0.000 -59.383
Traceless
 xyz
x -0.475 0.000 0.000
y 0.000 -0.475 0.000
z 0.000 0.000 0.951
Polar
3z2-r21.901
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.147 0.000 0.000
y 0.000 10.146 0.000
z 0.000 0.000 5.329


<r2> (average value of r2) Å2
<r2> 400.895
(<r2>)1/2 20.022