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: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-2809.441419
Energy at 298.15K 
HF Energy-2809.441419
Nuclear repulsion energy254.917394
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 PBEPBEultrafine/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' 3069 3019 23.18 86.66 0.27 0.43
2 A' 1252 1231 92.54 4.13 0.72 0.84
3 A' 1100 1082 246.66 1.55 0.15 0.27
4 A' 673 662 118.80 9.87 0.25 0.40
5 A' 556 547 8.03 2.23 0.33 0.50
6 A' 297 292 1.65 5.23 0.32 0.49
7 A" 1349 1326 29.99 5.24 0.75 0.86
8 A" 1143 1124 181.97 2.48 0.75 0.86
9 A" 298 293 0.34 1.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4868.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 4788.0 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 PBEPBEultrafine/6-31G*
ABC
0.33218 0.09348 0.07616

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.429 -0.935 0.000
H2 -1.528 -0.984 0.000
Br3 0.077 0.975 0.000
F4 0.077 -1.530 1.099
F5 0.077 -1.530 -1.099

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.09991.97661.34791.3479
H21.09992.53292.02022.0202
Br31.97662.53292.73542.7354
F41.34792.02022.73542.1976
F51.34792.02022.73542.1976

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 107.379 H2 C1 F4 110.837
H2 C1 F5 110.837 Br3 C1 F4 109.267
Br3 C1 F5 109.267 F4 C1 F5 109.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.334      
2 H 0.184      
3 Br -0.118      
4 F -0.200      
5 F -0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.264 -0.484 0.000 1.353
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.808 1.829 0.000
y 1.829 -33.002 0.000
z 0.000 0.000 -34.853
Traceless
 xyz
x 2.120 1.829 0.000
y 1.829 0.329 0.000
z 0.000 0.000 -2.448
Polar
3z2-r2-4.896
x2-y21.194
xy1.829
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.581 0.488 0.000
y 0.488 5.870 0.000
z 0.000 0.000 3.622


<r2> (average value of r2) Å2
<r2> 127.865
(<r2>)1/2 11.308