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

using model chemistry: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-238.000922
Energy at 298.15K-238.003837
HF Energy-238.000922
Nuclear repulsion energy78.570756
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 HF/daug-cc-pVTZ
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 3228 2920 50.94 112.54 0.07 0.12
2 A1 1674 1515 1.22 2.64 0.73 0.84
3 A1 1230 1112 133.46 5.58 0.16 0.27
4 A1 585 529 6.70 0.84 0.61 0.75
5 A2 1395 1262 0.00 3.81 0.75 0.86
6 B1 3295 2980 42.82 35.90 0.75 0.86
7 B1 1294 1170 25.75 0.48 0.75 0.86
8 B2 1597 1445 23.48 0.38 0.75 0.86
9 B2 1225 1108 279.89 3.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7761.0 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 7020.6 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 HF/daug-cc-pVTZ
ABC
1.69415 0.36694 0.32026

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.495
H2 -0.899 0.000 1.093
H3 0.899 0.000 1.093
F4 0.000 1.080 -0.286
F5 0.000 -1.080 -0.286

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.07921.07921.33311.3331
H21.07921.79731.96871.9687
H31.07921.79731.96871.9687
F41.33311.96871.96872.1599
F51.33311.96871.96872.1599

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 112.757 H2 C1 F4 108.944
H2 C1 F5 108.944 H3 C1 F4 108.944
H3 C1 F5 108.944 F4 C1 F5 108.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.312      
2 H 0.583      
3 H 0.583      
4 F -0.739      
5 F -0.739      


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 2.085 2.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.021 0.000 0.000
y 0.000 -19.124 0.000
z 0.000 0.000 -15.152
Traceless
 xyz
x 2.117 0.000 0.000
y 0.000 -4.038 0.000
z 0.000 0.000 1.921
Polar
3z2-r23.842
x2-y24.103
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.248 0.000 0.000
y 0.000 2.420 0.000
z 0.000 0.000 2.325


<r2> (average value of r2) Å2
<r2> 38.207
(<r2>)1/2 6.181