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All results from a given calculation for CH2F2 (Methane, difluoro-)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-238.758642
Energy at 298.15K-238.761482
HF Energy-238.758642
Nuclear repulsion energy77.307096
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 HSEh1PBE/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 A1 3081 2930 51.36 102.37 0.11 0.21
2 A1 1573 1496 3.90 8.90 0.74 0.85
3 A1 1157 1100 101.03 4.34 0.23 0.38
4 A1 528 502 4.49 1.69 0.74 0.85
5 A2 1286 1223 0.00 14.22 0.75 0.86
6 B1 3147 2993 71.41 48.31 0.75 0.86
7 B1 1203 1144 19.89 2.45 0.75 0.86
8 B2 1506 1432 48.00 5.64 0.75 0.86
9 B2 1164 1107 208.35 3.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7321.9 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 6963.1 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 HSEh1PBE/6-31G*
ABC
1.66757 0.35248 0.30872

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.496
H2 -0.909 0.000 1.108
H3 0.909 0.000 1.108
F4 0.000 1.102 -0.289
F5 0.000 -1.102 -0.289

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09551.09551.35301.3530
H21.09551.81781.99771.9977
H31.09551.81781.99771.9977
F41.35301.99771.99772.2044
F51.35301.99771.99772.2044

picture of Methane, difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.124 H2 C1 F4 108.894
H2 C1 F5 108.894 H3 C1 F4 108.894
H3 C1 F5 108.894 F4 C1 F5 109.099
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.268      
2 H 0.149      
3 H 0.149      
4 F -0.283      
5 F -0.283      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.719 1.719
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.034 0.000 0.000
y 0.000 -18.169 0.000
z 0.000 0.000 -14.861
Traceless
 xyz
x 1.480 0.000 0.000
y 0.000 -3.221 0.000
z 0.000 0.000 1.741
Polar
3z2-r23.481
x2-y23.134
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.944 0.000 0.000
y 0.000 1.940 0.000
z 0.000 0.000 1.924


<r2> (average value of r2) Å2
<r2> 38.957
(<r2>)1/2 6.242