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: HF/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-2710.977719
Energy at 298.15K-2710.983265
HF Energy-2710.977719
Nuclear repulsion energy166.394287
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/aug-cc-pVTZ
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' 3265 2973 19.19      
2 A' 1630 1484 0.40      
3 A' 1466 1335 68.56      
4 A' 1203 1095 221.27      
5 A' 695 632 83.50      
6 A' 340 310 0.52      
7 A" 3347 3047 3.73      
8 A" 1367 1245 4.38      
9 A" 1030 937 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 7171.4 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 6528.8 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/aug-cc-pVTZ
ABC
1.37193 0.12672 0.11863

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.509 -1.117 0.000
F2 -0.579 -1.891 0.000
Br3 0.000 0.751 0.000
H4 1.079 -1.291 0.894
H5 1.079 -1.291 -0.894

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.33531.93621.07451.0745
F21.33532.70531.97681.9768
Br31.93622.70532.47662.4766
H41.07451.97682.47661.7883
H51.07451.97682.47661.7883

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 110.214 F2 C1 H4 109.762
F2 C1 H5 109.762 Br3 C1 H4 107.195
Br3 C1 H5 107.195 H4 C1 H5 112.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 F -0.410      
3 Br -0.111      
4 H 0.290      
5 H 0.290      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.816 -0.797 0.000 1.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.551 -3.561 0.000
y -3.561 -30.323 0.000
z 0.000 0.000 -29.311
Traceless
 xyz
x 0.267 -3.561 0.000
y -3.561 -0.892 0.000
z 0.000 0.000 0.626
Polar
3z2-r21.252
x2-y20.773
xy-3.561
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.757 -0.349 0.000
y -0.349 6.445 0.000
z 0.000 0.000 4.533


<r2> (average value of r2) Å2
<r2> 89.829
(<r2>)1/2 9.478