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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-3167.800217
Energy at 298.15K-3167.804934
HF Energy-3167.233660
Nuclear repulsion energy321.138398
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 MP3/6-31G*
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 3247 3048 3.50      
2 A 1388 1303 23.33      
3 A 1290 1211 80.03      
4 A 1164 1092 167.08      
5 A 831 780 171.67      
6 A 674 633 56.02      
7 A 435 408 1.75      
8 A 318 298 0.21      
9 A 234 220 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 4790.5 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 4496.4 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 MP3/6-31G*
ABC
0.21533 0.06678 0.05267

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.581 0.455 0.418
Br2 -1.206 -0.184 -0.028
Cl3 1.826 -0.685 -0.069
F4 0.785 1.639 -0.204
H5 0.617 0.593 1.494

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.95001.75771.35291.0856
Br21.95003.07422.70502.4996
Cl31.75773.07422.55092.3540
F41.35292.70502.55092.0019
H51.08562.49962.35402.0019

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.918 Br2 C1 F4 108.610
Br2 C1 H5 107.413 Cl3 C1 F4 109.495
Cl3 C1 H5 109.496 F4 C1 H5 109.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability