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 CBrClF2 (Methane, bromochlorodifluoro-)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-3269.892150
Energy at 298.15K-3269.896228
HF Energy-3268.795416
Nuclear repulsion energy442.631159
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/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' 1154 1102 285.66      
2 A' 907 866 362.83      
3 A' 663 633 10.62      
4 A' 452 432 0.13      
5 A' 348 333 0.04      
6 A' 220 210 0.05      
7 A" 1226 1171 193.97      
8 A" 417 398 0.23      
9 A" 301 288 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2843.9 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 2717.3 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/cc-pVTZ
ABC
0.12882 0.05654 0.04937

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 0.672 0.000
Br2 0.546 -1.189 0.000
Cl3 -1.715 0.872 0.000
F4 0.546 1.264 1.073
F5 0.546 1.264 -1.073

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 F5
C11.92911.76281.32741.3274
Br21.92913.05882.67742.6774
Cl31.76283.05882.53292.5329
F41.32742.67742.53292.1469
F51.32742.67742.53292.1469

picture of Methane, bromochlorodifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.813 Br2 C1 F4 109.212
Br2 C1 F5 109.212 Cl3 C1 F4 109.290
Cl3 C1 F5 109.290 F4 C1 F5 107.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability