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All results from a given calculation for CHBrF2 (Methane, bromodifluoro-)

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-2796.447317
Energy at 298.15K-2796.452185
HF Energy-2796.071737
Nuclear repulsion energy249.762154
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 MP2=FULL/3-21G
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' 3223 3077 31.05      
2 A' 1351 1290 128.87      
3 A' 1108 1058 216.97      
4 A' 683 652 109.56      
5 A' 543 518 12.53      
6 A' 294 281 0.59      
7 A" 1438 1373 31.53      
8 A" 1198 1144 134.94      
9 A" 294 281 2.06      

Unscaled Zero Point Vibrational Energy (zpe) 5065.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 4836.4 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 MP2=FULL/3-21G
ABC
0.31780 0.08974 0.07297

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.436 -0.955 0.000
H2 -1.519 -0.997 0.000
Br3 0.078 0.996 0.000
F4 0.078 -1.562 1.125
F5 0.078 -1.562 -1.125

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.08352.01771.37811.3781
H21.08352.55352.03402.0340
Br32.01772.55352.79442.7944
F41.37812.03402.79442.2506
F51.37812.03402.79442.2506

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 106.954 H2 C1 F4 110.874
H2 C1 F5 110.874 Br3 C1 F4 109.300
Br3 C1 F5 109.300 F4 C1 F5 109.484
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability