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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

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 C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-3155.255812
Energy at 298.15K-3155.260441
HF Energy-3154.781055
Nuclear repulsion energy318.338606
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 3215 3059 4.92 71.48 0.28 0.43
2 A 1374 1307 16.59 8.31 0.74 0.85
3 A 1300 1237 70.94 6.48 0.74 0.85
4 A 1101 1047 107.61 2.06 0.73 0.84
5 A 739 703 208.78 5.45 0.65 0.79
6 A 674 641 42.95 9.85 0.13 0.23
7 A 402 383 1.94 5.07 0.30 0.46
8 A 300 285 0.37 3.15 0.63 0.77
9 A 230 219 0.21 4.66 0.55 0.71

Unscaled Zero Point Vibrational Energy (zpe) 4667.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 4440.6 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 MP2/3-21G*
ABC
0.20396 0.06676 0.05199

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.569 0.466 0.428
Br2 -1.207 -0.186 -0.030
Cl3 1.823 -0.708 -0.070
F4 0.802 1.686 -0.204
H5 0.612 0.576 1.506

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.94621.78881.39301.0849
Br21.94623.07442.75052.4998
Cl31.78883.07442.60612.3662
F41.39302.75052.60612.0479
H51.08492.49982.36622.0479

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 110.730 Br2 C1 F4 109.808
Br2 C1 H5 107.704 Cl3 C1 F4 109.357
Cl3 C1 H5 108.354 F4 C1 H5 110.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability