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

using model chemistry: TPSSh/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/STO-3G
 hartrees
Energy at 0K-235.628110
Energy at 298.15K-235.630810
HF Energy-235.628110
Nuclear repulsion energy74.287978
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 TPSSh/STO-3G
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 3105 3105 34.07 44.72 0.14 0.24
2 A1 1644 1644 2.44 14.08 0.74 0.85
3 A1 1141 1141 21.84 3.57 0.22 0.36
4 A1 483 483 3.18 1.68 0.73 0.84
5 A2 1270 1270 0.00 11.47 0.75 0.86
6 B1 3188 3188 40.18 34.76 0.75 0.86
7 B1 1136 1136 12.74 2.01 0.75 0.86
8 B2 1518 1518 36.77 3.97 0.75 0.86
9 B2 1183 1183 51.68 2.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7333.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7333.5 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 TPSSh/STO-3G
ABC
1.54722 0.32483 0.28389

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.511
H2 -0.920 0.000 1.174
H3 0.920 0.000 1.174
F4 0.000 1.149 -0.301
F5 0.000 -1.149 -0.301

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.13361.13361.40741.4074
H21.13361.83972.08372.0837
H31.13361.83972.08372.0837
F41.40742.08372.08372.2986
F51.40742.08372.08372.2986

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 108.474 H2 C1 F4 109.712
H2 C1 F5 109.712 H3 C1 F4 109.712
H3 C1 F5 109.712 F4 C1 F5 109.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.070      
2 H 0.060      
3 H 0.060      
4 F -0.095      
5 F -0.095      


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 0.921 0.921
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.914 0.000 0.000
y 0.000 1.282 0.000
z 0.000 0.000 1.078


<r2> (average value of r2) Å2
<r2> 40.486
(<r2>)1/2 6.363