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

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-238.016847
Energy at 298.15K-238.019766
HF Energy-238.016847
Nuclear repulsion energy78.629808
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/aug-cc-pVQZ
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 3227 2932 51.39 112.69 0.07 0.12
2 A1 1675 1522 1.19 2.65 0.72 0.84
3 A1 1228 1116 133.57 5.50 0.16 0.28
4 A1 585 531 6.65 0.83 0.61 0.76
5 A2 1397 1269 0.00 3.81 0.75 0.86
6 B1 3293 2992 43.55 36.05 0.75 0.86
7 B1 1296 1178 25.84 0.47 0.75 0.86
8 B2 1599 1453 23.03 0.38 0.75 0.86
9 B2 1223 1111 279.95 3.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7762.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 7051.9 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/aug-cc-pVQZ
ABC
1.69778 0.36738 0.32070

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.494
H2 -0.898 0.000 1.092
H3 0.898 0.000 1.092
F4 0.000 1.079 -0.286
F5 0.000 -1.079 -0.286

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.07881.07881.33191.3319
H21.07881.79571.96761.9676
H31.07881.79571.96761.9676
F41.33191.96761.96762.1586
F51.33191.96761.96762.1586

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 112.662 H2 C1 F4 108.957
H2 C1 F5 108.957 H3 C1 F4 108.957
H3 C1 F5 108.957 F4 C1 F5 108.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.589      
2 H 0.261      
3 H 0.261      
4 F -0.556      
5 F -0.556      


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 2.078 2.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.012 0.000 0.000
y 0.000 -19.102 0.000
z 0.000 0.000 -15.142
Traceless
 xyz
x 2.110 0.000 0.000
y 0.000 -4.025 0.000
z 0.000 0.000 1.915
Polar
3z2-r23.830
x2-y24.090
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.243 0.000 0.000
y 0.000 2.415 0.000
z 0.000 0.000 2.321


<r2> (average value of r2) Å2
<r2> 38.161
(<r2>)1/2 6.177