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: M06-2X/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 M06-2X/6-31G
 hartrees
Energy at 0K-2710.690757
Energy at 298.15K-2710.696171
HF Energy-2710.690757
Nuclear repulsion energy162.159184
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 M06-2X/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' 3176 3176 9.75      
2 A' 1525 1525 0.20      
3 A' 1365 1365 49.64      
4 A' 1102 1102 141.63      
5 A' 620 620 74.68      
6 A' 303 303 1.08      
7 A" 3273 3273 4.78      
8 A" 1242 1242 2.63      
9 A" 948 948 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 6777.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6777.0 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 M06-2X/6-31G
ABC
1.27120 0.12084 0.11281

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.538 -1.137 0.000
F2 -0.604 -1.941 0.000
Br3 0.000 0.769 0.000
H4 1.105 -1.305 0.909
H5 1.105 -1.305 -0.909

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.39651.97981.08451.0845
F21.39652.77622.03742.0374
Br31.97982.77622.51972.5197
H41.08452.03742.51971.8171
H51.08452.03742.51971.8171

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 109.410 F2 C1 H4 109.771
F2 C1 H5 109.771 Br3 C1 H4 106.968
Br3 C1 H5 106.968 H4 C1 H5 113.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.175      
2 F -0.321      
3 Br 0.038      
4 H 0.229      
5 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.256 -0.645 0.000 2.346
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.221 -3.796 0.000
y -3.796 -31.044 0.000
z 0.000 0.000 -29.112
Traceless
 xyz
x 0.857 -3.796 0.000
y -3.796 -1.878 0.000
z 0.000 0.000 1.021
Polar
3z2-r22.042
x2-y21.823
xy-3.796
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.343 -0.621 0.000
y -0.621 5.205 0.000
z 0.000 0.000 2.055


<r2> (average value of r2) Å2
<r2> 93.469
(<r2>)1/2 9.668