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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-5282.263820
Energy at 298.15K 
HF Energy-5282.263820
Nuclear repulsion energy484.220282
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 mPW1PW91/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3205 3051 0.01 73.74 0.24 0.39
2 A' 1321 1258 15.71 4.75 0.60 0.75
3 A' 1108 1054 196.87 1.89 0.65 0.79
4 A' 635 604 26.05 13.17 0.06 0.11
5 A' 364 347 0.23 4.83 0.14 0.25
6 A' 176 168 0.00 3.12 0.47 0.64
7 A" 1215 1156 86.60 2.58 0.75 0.86
8 A" 711 677 207.26 4.88 0.75 0.86
9 A" 301 286 0.01 2.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4517.9 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 4300.1 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 mPW1PW91/6-31+G**
ABC
0.18379 0.04154 0.03465

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.104 0.791 0.000
H2 -1.002 1.402 0.000
F3 0.989 1.582 0.000
Br4 -0.104 -0.291 1.592
Br5 -0.104 -0.291 -1.592

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08641.34881.92561.9256
H21.08641.99922.49222.4922
F31.34881.99922.69062.6906
Br41.92562.49222.69063.1849
Br51.92562.49222.69063.1849

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.892 H2 C1 Br4 108.429
H2 C1 Br5 108.429 F3 C1 Br4 109.244
F3 C1 Br5 109.244 Br4 C1 Br5 111.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.006      
2 H 0.225      
3 F -0.163      
4 Br -0.028      
5 Br -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.201 0.393 0.000 1.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.296 -2.386 0.000
y -2.386 -46.922 0.000
z 0.000 0.000 -46.877
Traceless
 xyz
x -1.397 -2.386 0.000
y -2.386 0.665 0.000
z 0.000 0.000 0.731
Polar
3z2-r21.463
x2-y2-1.375
xy-2.386
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.824 0.220 0.000
y 0.220 6.703 0.000
z 0.000 0.000 10.010


<r2> (average value of r2) Å2
<r2> 251.909
(<r2>)1/2 15.872