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: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-2778.725058
Energy at 298.15K-2778.730008
HF Energy-2778.725058
Nuclear repulsion energy254.705994
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 HF/STO-3G
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' 3525 2879 5.58      
2 A' 1499 1224 122.36      
3 A' 1301 1063 63.74      
4 A' 831 678 62.83      
5 A' 584 477 12.93      
6 A' 364 297 1.22      
7 A" 1603 1309 45.81      
8 A" 1375 1123 25.71      
9 A" 337 275 3.17      

Unscaled Zero Point Vibrational Energy (zpe) 5709.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 4661.9 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 HF/STO-3G
ABC
0.32649 0.09381 0.07606

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.423 -0.904 0.000
H2 -1.533 -0.966 0.000
Br3 0.077 0.972 0.000
F4 0.077 -1.535 1.110
F5 0.077 -1.535 -1.110

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.11141.94211.37081.3708
H21.11142.51962.03632.0363
Br31.94212.51962.74182.7418
F41.37082.03632.74182.2193
F51.37082.03632.74182.2193

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 108.100 H2 C1 F4 109.801
H2 C1 F5 109.801 Br3 C1 F4 110.521
Br3 C1 F5 110.521 F4 C1 F5 108.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.197      
2 H 0.087      
3 Br -0.028      
4 F -0.128      
5 F -0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.164 -0.501 0.000 1.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.010 1.204 0.000
y 1.204 -31.704 0.000
z 0.000 0.000 -31.878
Traceless
 xyz
x 2.781 1.204 0.000
y 1.204 -1.259 0.000
z 0.000 0.000 -1.521
Polar
3z2-r2-3.043
x2-y22.693
xy1.204
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.055 0.430 0.000
y 0.430 3.071 0.000
z 0.000 0.000 1.126


<r2> (average value of r2) Å2
<r2> 126.511
(<r2>)1/2 11.248