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 CHBrF2 (Methane, bromodifluoro-)

using model chemistry: MP4/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-2810.664371
Energy at 298.15K 
HF Energy-2809.778046
Nuclear repulsion energy258.071300
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 MP4/6-311+G(3df,2p)
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' 3144 2968        
2 A' 1313 1239        
3 A' 1106 1044        
4 A' 726 685        
5 A' 577 545        
6 A' 326 308        
7 A" 1373 1296        
8 A" 1131 1067        
9 A" 316 298        

Unscaled Zero Point Vibrational Energy (zpe) 5006.2 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 4724.9 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 MP4/6-311+G(3df,2p)
ABC
0.33902 0.09597 0.07813

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.426 -0.908 0.000
H2 -1.512 -0.984 0.000
Br3 0.077 0.962 0.000
F4 0.077 -1.513 1.087
F5 0.077 -1.513 -1.087

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.08871.93641.34211.3421
H21.08872.51251.99691.9969
Br31.93642.51252.70312.7031
F41.34211.99692.70312.1747
F51.34211.99692.70312.1747

picture of Methane, bromodifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 109.070 H2 C1 F4 110.029
H2 C1 F5 110.029 Br3 C1 F4 109.739
Br3 C1 F5 109.739 F4 C1 F5 108.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability