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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-5225.445583
Energy at 298.15K 
HF Energy-5225.349610
Nuclear repulsion energy472.009416
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 MP2/STO-3G
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' 3335 2908 6.57 38.01 0.36 0.53
2 A' 1435 1251 37.40 6.46 0.74 0.85
3 A' 1240 1082 50.33 4.14 0.60 0.75
4 A' 678 591 21.28 9.10 0.12 0.22
5 A' 388 338 3.83 3.94 0.29 0.45
6 A' 184 161 0.67 3.56 0.60 0.75
7 A" 1341 1169 78.78 8.20 0.75 0.86
8 A" 840 733 99.39 9.06 0.75 0.86
9 A" 313 273 0.38 2.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4877.1 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 4252.4 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 MP2/STO-3G
ABC
0.17471 0.03938 0.03282

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.103 0.786 0.000
H2 -1.055 1.382 0.000
F3 0.984 1.651 0.000
Br4 -0.103 -0.299 1.636
Br5 -0.103 -0.299 -1.636

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.12341.38951.96361.9636
H21.12342.05722.53192.5319
F31.38952.05722.76862.7686
Br41.96362.53192.76863.2728
Br51.96362.53192.76863.2728

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.449 H2 C1 Br4 107.042
H2 C1 Br5 107.042 F3 C1 Br4 110.140
F3 C1 Br5 110.140 Br4 C1 Br5 112.891
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability