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

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-235.579872
Energy at 298.15K-235.582579
HF Energy-235.579872
Nuclear repulsion energy74.378975
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 B3LYP/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 3114 2779 31.49 42.60 0.14 0.24
2 A1 1643 1466 1.48 13.88 0.74 0.85
3 A1 1147 1023 21.50 3.62 0.22 0.36
4 A1 486 434 3.49 1.63 0.73 0.84
5 A2 1276 1139 0.00 11.40 0.75 0.86
6 B1 3199 2855 35.33 33.36 0.75 0.86
7 B1 1139 1017 12.44 1.86 0.75 0.86
8 B2 1523 1359 33.33 3.74 0.75 0.86
9 B2 1192 1063 47.53 3.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7359.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 6567.8 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 B3LYP/STO-3G
ABC
1.54570 0.32615 0.28479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.512
H2 -0.918 0.000 1.174
H3 0.918 0.000 1.174
F4 0.000 1.147 -0.301
F5 0.000 -1.147 -0.301

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.13231.13231.40601.4060
H21.13231.83672.08242.0824
H31.13231.83672.08242.0824
F41.40602.08242.08242.2940
F51.40602.08242.08242.2940

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 108.394 H2 C1 F4 109.775
H2 C1 F5 109.775 H3 C1 F4 109.775
H3 C1 F5 109.775 F4 C1 F5 109.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.065      
2 H 0.066      
3 H 0.066      
4 F -0.099      
5 F -0.099      


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 0.981 0.981
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.859 0.000 0.000
y 0.000 -15.879 0.000
z 0.000 0.000 -13.781
Traceless
 xyz
x 0.970 0.000 0.000
y 0.000 -2.059 0.000
z 0.000 0.000 1.088
Polar
3z2-r22.177
x2-y22.020
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.907 0.000 0.000
y 0.000 1.267 0.000
z 0.000 0.000 1.074


<r2> (average value of r2) Å2
<r2> 40.391
(<r2>)1/2 6.355