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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-57.945024
Energy at 298.15K-57.949557
HF Energy-57.661242
Nuclear repulsion energy59.405538
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-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 3157 3081 7.07 80.57 0.23 0.37
2 A 1278 1247 22.89 11.28 0.75 0.85
3 A 1251 1221 76.26 9.14 0.72 0.84
4 A 951 928 171.01 2.97 0.55 0.71
5 A 737 719 178.00 8.06 0.59 0.74
6 A 625 610 41.18 13.67 0.19 0.32
7 A 379 370 2.14 7.35 0.36 0.53
8 A 291 284 1.18 5.11 0.66 0.79
9 A 215 210 0.12 9.52 0.61 0.76

Unscaled Zero Point Vibrational Energy (zpe) 4441.1 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 4334.6 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-121G
ABC
0.19790 0.06160 0.04854

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.567 0.455 0.446
Br2 -1.250 -0.200 -0.031
Cl3 1.923 -0.698 -0.072
F4 0.782 1.723 -0.209
H5 0.629 0.622 1.524

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.98911.85351.44301.0930
Br21.98913.21162.80312.5735
Cl31.85353.21162.67912.4422
F41.44302.80312.67912.0591
H51.09302.57352.44222.0591

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 113.353 Br2 C1 F4 108.469
Br2 C1 H5 109.783 Cl3 C1 F4 108.078
Cl3 C1 H5 109.225 F4 C1 H5 107.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability