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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: MP2/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-56.367608
Energy at 298.15K 
HF Energy-56.121285
Nuclear repulsion energy57.846642
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/CEP-31G
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' 3204 3096 8.42 103.07 0.21 0.35
2 A' 1275 1232 21.88 12.59 0.73 0.84
3 A' 938 907 155.45 4.07 0.63 0.77
4 A' 589 569 24.46 14.70 0.20 0.34
5 A' 329 318 0.64 7.68 0.33 0.50
6 A' 166 161 0.00 8.33 0.60 0.75
7 A" 1226 1185 92.53 8.97 0.75 0.86
8 A" 692 669 170.20 7.55 0.75 0.86
9 A" 275 265 1.16 4.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4346.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 4200.4 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/CEP-31G
ABC
0.17115 0.03756 0.03148

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.114 0.787 0.000
H2 -0.990 1.455 0.000
F3 1.069 1.626 0.000
Br4 -0.114 -0.297 1.675
Br5 -0.114 -0.297 -1.675

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.10221.44941.99571.9957
H21.10222.06582.57812.5781
F31.44942.06582.81122.8112
Br41.99572.57812.81123.3502
Br51.99572.57812.81123.3502

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 107.339 H2 C1 Br4 109.236
H2 C1 Br5 109.236 F3 C1 Br4 108.332
F3 C1 Br5 108.332 Br4 C1 Br5 114.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability