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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-56.128151
Energy at 298.15K 
HF Energy-56.128151
Nuclear repulsion energy59.361504
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 HF/CEP-121G
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' 3368 3073 5.25 85.78 0.25 0.40
2 A' 1414 1291 35.34 12.40 0.72 0.84
3 A' 1114 1017 216.63 8.01 0.75 0.86
4 A' 642 586 28.95 29.78 0.16 0.27
5 A' 363 331 1.48 10.34 0.25 0.40
6 A' 180 164 0.07 9.10 0.57 0.73
7 A" 1319 1203 131.21 10.11 0.75 0.86
8 A" 764 697 201.58 19.22 0.75 0.86
9 A" 306 279 2.02 4.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4735.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 4320.7 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 HF/CEP-121G
ABC
0.18053 0.03916 0.03288

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.108 0.780 0.000
H2 -0.979 1.408 0.000
F3 1.023 1.589 0.000
Br4 -0.108 -0.291 1.641
Br5 -0.108 -0.291 -1.641

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.07371.39111.95931.9593
H21.07372.01012.51742.5174
F31.39112.01012.74012.7401
Br41.95932.51742.74013.2814
Br51.95932.51742.74013.2814

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 108.601 H2 C1 Br4 108.651
H2 C1 Br5 108.651 F3 C1 Br4 108.551
F3 C1 Br5 108.551 Br4 C1 Br5 113.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.346      
2 H 0.245      
3 F -0.253      
4 Br 0.177      
5 Br 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.016 0.097 0.000 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.451 -3.471 0.000
y -3.471 -41.701 0.000
z 0.000 0.000 -41.226
Traceless
 xyz
x -0.988 -3.471 0.000
y -3.471 0.137 0.000
z 0.000 0.000 0.850
Polar
3z2-r21.701
x2-y2-0.750
xy-3.471
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.431 0.241 0.000
y 0.241 4.214 0.000
z 0.000 0.000 8.633


<r2> (average value of r2) Å2
<r2> 95.567
(<r2>)1/2 9.776