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All results from a given calculation for CH2BrF (Methane, bromofluoro-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-2698.309239
Energy at 298.15K-2698.314677
HF Energy-2697.969611
Nuclear repulsion energy162.337454
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 MP2/3-21G*
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' 3154 3000 18.40      
2 A' 1598 1520 0.99      
3 A' 1408 1339 66.60      
4 A' 1091 1037 98.64      
5 A' 653 622 62.98      
6 A' 298 284 1.00      
7 A" 3229 3072 12.49      
8 A" 1278 1216 1.68      
9 A" 986 938 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 6847.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 6513.7 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 MP2/3-21G*
ABC
1.29282 0.12039 0.11254

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.529 -1.121 0.000
F2 -0.601 -1.956 0.000
Br3 0.000 0.768 0.000
H4 1.116 -1.277 0.902
H5 1.116 -1.277 -0.902

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.40471.96161.08751.0875
F21.40472.78982.05472.0547
Br31.96162.78982.49832.4983
H41.08752.05472.49831.8039
H51.08752.05472.49831.8039

picture of Methane, bromofluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 110.855 F2 C1 H4 110.412
F2 C1 H5 110.412 Br3 C1 H4 106.484
Br3 C1 H5 106.484 H4 C1 H5 112.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability