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

using model chemistry: TPSSh/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 TPSSh/cc-pCVTZ
 hartrees
Energy at 0K-239.077970
Energy at 298.15K 
HF Energy-239.077970
Nuclear repulsion energy76.945505
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/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 3038 3038 46.54 119.21 0.09 0.16
2 A1 1539 1539 0.76 4.51 0.69 0.81
3 A1 1109 1109 98.88 3.75 0.27 0.42
4 A1 520 520 4.16 1.63 0.69 0.81
5 A2 1267 1267 0.00 7.08 0.75 0.86
6 B1 3109 3109 46.53 46.78 0.75 0.86
7 B1 1182 1182 17.66 1.68 0.75 0.86
8 B2 1458 1458 15.37 2.26 0.75 0.86
9 B2 1079 1079 240.39 2.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7150.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7150.1 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 TPSSh/cc-pCVTZ
ABC
1.64259 0.34997 0.30611

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.505
H2 -0.913 0.000 1.103
H3 0.913 0.000 1.103
F4 0.000 1.106 -0.291
F5 0.000 -1.106 -0.291

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09161.09161.36271.3627
H21.09161.82632.00022.0002
H31.09161.82632.00022.0002
F41.36272.00022.00022.2122
F51.36272.00022.00022.2122

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 113.546 H2 C1 F4 108.666
H2 C1 F5 108.666 H3 C1 F4 108.666
H3 C1 F5 108.666 F4 C1 F5 108.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.293      
2 H 0.051      
3 H 0.051      
4 F -0.198      
5 F -0.198      


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 1.840 1.840
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 2.137 0.000 0.000
y 0.000 2.400 0.000
z 0.000 0.000 2.259


<r2> (average value of r2) Å2
<r2> 39.381
(<r2>)1/2 6.275