return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: MP4/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP4/cc-pVTZ
 hartrees
Energy at 0K-3170.800667
Energy at 298.15K-3170.805351
HF Energy-3169.902614
Nuclear repulsion energy321.663129
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 MP4/cc-pVTZ
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 3059        
2 A 1333 1292        
3 A 1228 1190        
4 A 1101 1067        
5 A 791 766        
6 A 667 646        
7 A 425 412        
8 A 315 306        
9 A 225 218        

Unscaled Zero Point Vibrational Energy (zpe) 4619.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 4477.5 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 MP4/cc-pVTZ
ABC
0.21376 0.06726 0.05284

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.568 0.462 0.413
Br2 -1.201 -0.186 -0.028
Cl3 1.824 -0.687 -0.067
F4 0.779 1.646 -0.203
H5 0.612 0.594 1.489

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.93491.76871.35071.0850
Br21.93493.06612.70302.4897
Cl31.76873.06612.56012.3517
F41.35072.70302.56011.9988
H51.08502.48972.35171.9988

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.681 Br2 C1 F4 109.417
Br2 C1 H5 107.708 Cl3 C1 F4 109.578
Cl3 C1 H5 108.611 F4 C1 H5 109.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability