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

using model chemistry: HF/6-311G*

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/6-311G*
 hartrees
Energy at 0K-237.963660
Energy at 298.15K-237.966578
HF Energy-237.963660
Nuclear repulsion energy78.482454
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/6-311G*
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 3282 2968 59.24 95.43 0.12 0.21
2 A1 1694 1532 5.05 6.47 0.75 0.86
3 A1 1233 1115 151.48 3.64 0.27 0.43
4 A1 583 527 7.60 1.45 0.71 0.83
5 A2 1421 1285 0.00 10.61 0.75 0.86
6 B1 3354 3034 69.77 41.70 0.75 0.86
7 B1 1303 1179 36.33 1.41 0.75 0.86
8 B2 1634 1478 52.77 3.94 0.75 0.86
9 B2 1238 1120 281.55 3.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7870.3 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 7117.9 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/6-311G*
ABC
1.70406 0.36469 0.31891

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.493
H2 -0.899 0.000 1.089
H3 0.899 0.000 1.089
F4 0.000 1.083 -0.285
F5 0.000 -1.083 -0.285

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.07821.07821.33431.3343
H21.07821.79761.96741.9674
H31.07821.79761.96741.9674
F41.33431.96741.96742.1667
F51.33431.96741.96742.1667

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 112.939 H2 C1 F4 108.810
H2 C1 F5 108.810 H3 C1 F4 108.810
H3 C1 F5 108.810 F4 C1 F5 108.575
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.256      
2 H 0.180      
3 H 0.180      
4 F -0.307      
5 F -0.307      


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 2.153 2.153
CHELPG        
AIM        
ESP 0.014 0.000 2.193 2.193


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.902 0.000 0.000
y 0.000 -19.084 0.000
z 0.000 0.000 -14.947
Traceless
 xyz
x 2.114 0.000 0.000
y 0.000 -4.160 0.000
z 0.000 0.000 2.046
Polar
3z2-r24.093
x2-y24.182
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.690 0.000 0.000
y 0.000 1.735 0.000
z 0.000 0.000 1.713


<r2> (average value of r2) Å2
<r2> 38.229
(<r2>)1/2 6.183