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All results from a given calculation for CH2BrF (Methane, bromofluoro-)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-44.377558
Energy at 298.15K-44.382904
HF Energy-44.377558
Nuclear repulsion energy37.545530
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 B3LYP/CEP-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' 3126 3027 29.07      
2 A' 1467 1420 0.18      
3 A' 1323 1281 56.56      
4 A' 989 958 173.06      
5 A' 601 582 77.22      
6 A' 285 276 1.01      
7 A" 3241 3139 18.91      
8 A" 1192 1154 2.98      
9 A" 920 891 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 6571.3 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 6363.6 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 B3LYP/CEP-31G
ABC
1.24406 0.11605 0.10849

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.546 -1.151 0.000
F2 -0.611 -1.985 0.000
Br3 0.000 0.784 0.000
H4 1.110 -1.331 0.923
H5 1.110 -1.331 -0.923

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.42592.01051.09631.0963
F21.42592.83562.05892.0589
Br32.01052.83562.56042.5604
H41.09632.05892.56041.8457
H51.09632.05892.56041.8457

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 110.045 F2 C1 H4 108.729
F2 C1 H5 108.729 Br3 C1 H4 107.312
Br3 C1 H5 107.312 H4 C1 H5 114.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 F -0.203      
3 Br 0.039      
4 H 0.233      
5 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.422 -0.407 0.000 2.456
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.030 -4.326 0.000
y -4.326 -27.872 0.000
z 0.000 0.000 -25.806
Traceless
 xyz
x 0.809 -4.326 0.000
y -4.326 -1.954 0.000
z 0.000 0.000 1.145
Polar
3z2-r22.290
x2-y21.842
xy-4.326
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.278 -0.664 0.000
y -0.664 5.936 0.000
z 0.000 0.000 1.876


<r2> (average value of r2) Å2
<r2> 65.293
(<r2>)1/2 8.080