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=FULLultrafine/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 B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-2699.545176
Energy at 298.15K 
HF Energy-2699.460358
Nuclear repulsion energy159.847042
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=FULLultrafine/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' 3153 3153 20.01      
2 A' 1572 1572 0.76      
3 A' 1379 1379 65.50      
4 A' 1096 1096 129.81      
5 A' 608 608 61.92      
6 A' 284 284 1.22      
7 A" 3231 3231 16.11      
8 A" 1262 1262 1.46      
9 A" 948 948 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 6766.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6766.3 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 B2PLYP=FULLultrafine/3-21G
ABC
1.28684 0.11620 0.10883

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.529 -1.166 0.000
F2 -0.600 -1.980 0.000
Br3 0.000 0.784 0.000
H4 1.115 -1.309 0.902
H5 1.115 -1.309 -0.902

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.39282.02001.08501.0850
F21.39282.82882.05112.0511
Br32.02002.82882.53712.5371
H41.08502.05112.53711.8037
H51.08502.05112.53711.8037

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 110.625 F2 C1 H4 111.136
F2 C1 H5 111.136 Br3 C1 H4 105.609
Br3 C1 H5 105.609 H4 C1 H5 112.440
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability