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 CH2BrF (Methane, bromofluoro-)

using model chemistry: B2PLYP=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-2710.246461
Energy at 298.15K-2710.251897
HF Energy-2710.096403
Nuclear repulsion energy164.127267
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 B2PLYP=FULL/6-31G**
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' 3148 3148 19.29      
2 A' 1539 1539 0.56      
3 A' 1366 1366 71.84      
4 A' 1128 1128 171.24      
5 A' 636 636 69.32      
6 A' 308 308 0.49      
7 A" 3237 3237 9.90      
8 A" 1271 1271 2.83      
9 A" 956 956 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 6794.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6794.2 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 B2PLYP=FULL/6-31G**
ABC
1.33879 0.12305 0.11523

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.515 -1.128 0.000
F2 -0.587 -1.924 0.000
Br3 0.000 0.762 0.000
H4 1.095 -1.288 0.905
H5 1.095 -1.288 -0.905

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.35941.95861.08611.0861
F21.35942.74882.01232.0123
Br31.95862.74882.49382.4938
H41.08612.01232.49381.8091
H51.08612.01232.49381.8091

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 110.584 F2 C1 H4 110.245
F2 C1 H5 110.245 Br3 C1 H4 106.431
Br3 C1 H5 106.431 H4 C1 H5 112.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability