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

using model chemistry: PBEPBE/cc-pCVTZ

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/cc-pCVTZ
 hartrees
Energy at 0K-238.841543
Energy at 298.15K 
HF Energy-238.841543
Nuclear repulsion energy76.523254
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/cc-pCVTZ
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 2948 2948 49.21 125.81 0.08 0.16
2 A1 1474 1474 0.43 5.06 0.68 0.81
3 A1 1081 1081 89.85 3.61 0.30 0.46
4 A1 510 510 3.40 1.76 0.70 0.82
5 A2 1222 1222 0.00 8.08 0.75 0.86
6 B1 3013 3013 50.30 51.31 0.75 0.86
7 B1 1144 1144 15.03 1.83 0.75 0.86
8 B2 1405 1405 13.45 2.88 0.75 0.86
9 B2 1049 1049 229.96 2.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6922.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6922.7 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/cc-pCVTZ
ABC
1.63274 0.34540 0.30251

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.504
H2 -0.919 0.000 1.112
H3 0.919 0.000 1.112
F4 0.000 1.113 -0.292
F5 0.000 -1.113 -0.292

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10181.10181.36851.3685
H21.10181.83852.01332.0133
H31.10181.83852.01332.0133
F41.36852.01332.01332.2268
F51.36852.01332.01332.2268

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 113.089 H2 C1 F4 108.696
H2 C1 F5 108.696 H3 C1 F4 108.696
H3 C1 F5 108.696 F4 C1 F5 108.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.191      
2 H 0.071      
3 H 0.071      
4 F -0.167      
5 F -0.167      


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 1.724 1.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.388 0.000 0.000
y 0.000 -18.666 0.000
z 0.000 0.000 -15.334
Traceless
 xyz
x 1.612 0.000 0.000
y 0.000 -3.305 0.000
z 0.000 0.000 1.693
Polar
3z2-r23.387
x2-y23.278
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.231 0.000 0.000
y 0.000 2.488 0.000
z 0.000 0.000 2.347


<r2> (average value of r2) Å2
<r2> 39.813
(<r2>)1/2 6.310