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: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-2710.894418
Energy at 298.15K-2710.899859
HF Energy-2710.894418
Nuclear repulsion energy165.875588
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 TPSSh/6-31G(2df,p)
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' 3077 2970 19.45      
2 A' 1513 1460 0.10      
3 A' 1341 1294 48.26      
4 A' 1108 1069 158.95      
5 A' 646 623 64.21      
6 A' 311 300 0.37      
7 A" 3157 3046 9.81      
8 A" 1251 1207 2.36      
9 A" 949 916 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 6675.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 6442.1 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 TPSSh/6-31G(2df,p)
ABC
1.33818 0.12640 0.11817

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.515 -1.109 0.000
F2 -0.587 -1.898 0.000
Br3 0.000 0.751 0.000
H4 1.097 -1.283 0.906
H5 1.097 -1.283 -0.906

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.35501.93031.09031.0903
F21.35502.71342.00822.0082
Br31.93032.71342.48192.4819
H41.09032.00822.48191.8111
H51.09032.00822.48191.8111

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 110.134 F2 C1 H4 109.950
F2 C1 H5 109.950 Br3 C1 H4 107.208
Br3 C1 H5 107.208 H4 C1 H5 112.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.195      
2 F -0.112      
3 Br -0.044      
4 H 0.176      
5 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.471 -0.835 0.000 1.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.307 -0.350 0.000
y -0.350 6.077 0.000
z 0.000 0.000 4.143


<r2> (average value of r2) Å2
<r2> 89.592
(<r2>)1/2 9.465