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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-3168.181221
Energy at 298.15K-3168.185961
HF Energy-3167.429220
Nuclear repulsion energy324.402093
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 QCISD/6-31G(2df,p)
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 3200 3032 2.11      
2 A 1375 1302 15.84      
3 A 1265 1198 66.71      
4 A 1161 1100 149.35      
5 A 816 774 173.64      
6 A 692 655 33.19      
7 A 433 410 0.80      
8 A 329 311 0.32      
9 A 232 220 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 4751.0 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 4501.1 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 QCISD/6-31G(2df,p)
ABC
0.21734 0.06841 0.05378

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.550 0.463 0.415
Br2 -1.188 -0.190 -0.028
Cl3 1.818 -0.673 -0.067
F4 0.750 1.633 -0.204
H5 0.609 0.598 1.491

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.90891.76951.33891.0862
Br21.90893.04502.66612.4815
Cl31.76953.04502.54572.3467
F41.33892.66612.54571.9915
H51.08622.48152.34671.9915

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.694 Br2 C1 F4 109.091
Br2 C1 H5 108.765 Cl3 C1 F4 109.179
Cl3 C1 H5 108.123 F4 C1 H5 109.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability