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

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-238.806577
Energy at 298.15K-238.809373
HF Energy-238.806577
Nuclear repulsion energy76.439031
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 PBEPBE/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 2969 2938 55.90 111.09 0.11 0.20
2 A1 1490 1474 1.57 7.33 0.74 0.85
3 A1 1081 1070 99.25 3.75 0.31 0.47
4 A1 509 504 3.72 2.25 0.72 0.84
5 A2 1235 1222 0.00 13.00 0.75 0.86
6 B1 3038 3006 69.16 54.28 0.75 0.86
7 B1 1154 1142 18.41 2.40 0.75 0.86
8 B2 1435 1420 30.86 6.15 0.75 0.86
9 B2 1054 1043 236.96 2.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6982.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 6909.6 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 PBEPBE/6-311G*
ABC
1.63752 0.34380 0.30152

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.503
H2 -0.921 0.000 1.109
H3 0.921 0.000 1.109
F4 0.000 1.116 -0.291
F5 0.000 -1.116 -0.291

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10251.10251.36971.3697
H21.10251.84202.01342.0134
H31.10251.84202.01342.0134
F41.36972.01342.01342.2320
F51.36972.01342.01342.2320

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 113.309 H2 C1 F4 108.583
H2 C1 F5 108.583 H3 C1 F4 108.583
H3 C1 F5 108.583 F4 C1 F5 109.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.051      
2 H 0.184      
3 H 0.184      
4 F -0.210      
5 F -0.210      


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 1.777 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.241 0.000 0.000
y 0.000 -18.699 0.000
z 0.000 0.000 -15.196
Traceless
 xyz
x 1.707 0.000 0.000
y 0.000 -3.480 0.000
z 0.000 0.000 1.773
Polar
3z2-r23.547
x2-y23.458
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.927 0.000 0.000
y 0.000 2.108 0.000
z 0.000 0.000 2.000


<r2> (average value of r2) Å2
<r2> 39.847
(<r2>)1/2 6.312