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: PBE1PBE/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 PBE1PBE/3-21G*
 hartrees
Energy at 0K-2699.950947
Energy at 298.15K-2699.956379
HF Energy-2699.950947
Nuclear repulsion energy163.646426
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 PBE1PBE/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' 3119 2993 19.22      
2 A' 1555 1492 0.06      
3 A' 1375 1320 47.01      
4 A' 1109 1064 114.50      
5 A' 653 627 60.98      
6 A' 299 287 0.77      
7 A" 3192 3063 13.10      
8 A" 1257 1206 0.96      
9 A" 962 924 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 6759.7 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 6488.0 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 PBE1PBE/3-21G*
ABC
1.31786 0.12229 0.11439

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.520 -1.112 0.000
F2 -0.594 -1.941 0.000
Br3 0.000 0.762 0.000
H4 1.114 -1.265 0.901
H5 1.114 -1.265 -0.901

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.38901.94451.09011.0901
F21.38902.76782.04622.0462
Br31.94452.76782.48192.4819
H41.09012.04622.48191.8024
H51.09012.04622.48191.8024

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 111.165 F2 C1 H4 110.678
F2 C1 H5 110.678 Br3 C1 H4 106.315
Br3 C1 H5 106.315 H4 C1 H5 111.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 F -0.279      
3 Br -0.072      
4 H 0.255      
5 H 0.255      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.791 -0.468 0.000 1.851
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.599 -3.314 0.000
y -3.314 -29.506 0.000
z 0.000 0.000 -28.716
Traceless
 xyz
x 0.512 -3.314 0.000
y -3.314 -0.849 0.000
z 0.000 0.000 0.336
Polar
3z2-r20.673
x2-y20.907
xy-3.314
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.033 -0.397 0.000
y -0.397 5.060 0.000
z 0.000 0.000 2.828


<r2> (average value of r2) Å2
<r2> 91.833
(<r2>)1/2 9.583