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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-238.732539
Energy at 298.15K-238.735337
HF Energy-238.732539
Nuclear repulsion energy76.417535
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 PBEPBE/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 2952 2911 55.08 108.71 0.11 0.20
2 A1 1499 1478 2.85 9.46 0.74 0.85
3 A1 1101 1086 88.39 4.51 0.24 0.39
4 A1 504 497 3.27 1.98 0.74 0.85
5 A2 1222 1205 0.00 15.27 0.75 0.86
6 B1 3012 2971 76.18 53.64 0.75 0.86
7 B1 1154 1138 15.74 2.93 0.75 0.86
8 B2 1438 1418 38.63 6.13 0.75 0.86
9 B2 1095 1080 200.97 2.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6988.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 6892.4 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 PBEPBE/6-31G**
ABC
1.63766 0.34360 0.30123

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.500
H2 -0.917 0.000 1.119
H3 0.917 0.000 1.119
F4 0.000 1.116 -0.291
F5 0.000 -1.116 -0.291

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10681.10681.36851.3685
H21.10681.83482.01932.0193
H31.10681.83482.01932.0193
F41.36852.01932.01932.2330
F51.36852.01932.01932.2330

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 111.971 H2 C1 F4 108.873
H2 C1 F5 108.873 H3 C1 F4 108.873
H3 C1 F5 108.873 F4 C1 F5 109.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.310      
2 H 0.101      
3 H 0.101      
4 F -0.256      
5 F -0.256      


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 1.566 1.566
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.164 0.000 0.000
y 0.000 -18.020 0.000
z 0.000 0.000 -14.975
Traceless
 xyz
x 1.333 0.000 0.000
y 0.000 -2.950 0.000
z 0.000 0.000 1.617
Polar
3z2-r23.234
x2-y22.856
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.044 0.000 0.000
y 0.000 2.095 0.000
z 0.000 0.000 2.042


<r2> (average value of r2) Å2
<r2> 39.681
(<r2>)1/2 6.299