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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-5258.123873
Energy at 298.15K 
HF Energy-5257.651267
Nuclear repulsion energy478.773140
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 MP2/3-21G*
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' 3206 3049 4.02 72.26 0.27 0.43
2 A' 1361 1295 19.49 7.42 0.75 0.86
3 A' 1101 1047 103.35 2.26 0.75 0.86
4 A' 640 609 24.92 9.54 0.10 0.19
5 A' 348 331 0.85 4.43 0.24 0.39
6 A' 174 166 0.06 3.49 0.51 0.68
7 A" 1258 1197 82.79 5.22 0.75 0.86
8 A" 716 681 179.42 5.20 0.75 0.86
9 A" 282 268 0.40 2.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4542.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 4321.7 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 MP2/3-21G*
ABC
0.17219 0.04132 0.03409

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.106 0.813 0.000
H2 -1.023 1.394 0.000
F3 1.011 1.646 0.000
Br4 -0.106 -0.301 1.597
Br5 -0.106 -0.301 -1.597

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08601.39321.94681.9468
H21.08602.04952.50312.5031
F31.39322.04952.75442.7544
Br41.94682.50312.75443.1931
Br51.94682.50312.75443.1931

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.910 H2 C1 Br4 107.846
H2 C1 Br5 107.846 F3 C1 Br4 110.004
F3 C1 Br5 110.004 Br4 C1 Br5 110.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability