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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-2710.949566
Energy at 298.15K-2710.954949
HF Energy-2710.949566
Nuclear repulsion energy161.876927
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 B1B95/6-31G
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' 3174 3027 13.49      
2 A' 1522 1451 0.33      
3 A' 1355 1292 46.01      
4 A' 1067 1018 148.92      
5 A' 604 576 72.43      
6 A' 291 278 1.07      
7 A" 3275 3124 7.68      
8 A" 1234 1177 2.19      
9 A" 940 896 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 6730.8 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 6419.2 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 B1B95/6-31G
ABC
1.28498 0.11991 0.11210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.534 -1.136 0.000
F2 -0.601 -1.952 0.000
Br3 0.000 0.771 0.000
H4 1.103 -1.300 0.908
H5 1.103 -1.300 -0.908

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.39741.98061.08391.0839
F21.39742.78882.03752.0375
Br31.98062.78882.51632.5163
H41.08392.03752.51631.8150
H51.08392.03752.51631.8150

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 110.095 F2 C1 H4 109.758
F2 C1 H5 109.758 Br3 C1 H4 106.704
Br3 C1 H5 106.704 H4 C1 H5 113.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.196      
2 F -0.306      
3 Br 0.042      
4 H 0.230      
5 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.171 -0.574 0.000 2.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.975 -3.672 0.000
y -3.672 -30.680 0.000
z 0.000 0.000 -28.902
Traceless
 xyz
x 0.816 -3.672 0.000
y -3.672 -1.742 0.000
z 0.000 0.000 0.926
Polar
3z2-r21.852
x2-y21.705
xy-3.672
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.372 -0.585 0.000
y -0.585 5.304 0.000
z 0.000 0.000 2.079


<r2> (average value of r2) Å2
<r2> 93.713
(<r2>)1/2 9.681