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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3B3
 hartrees
Energy at 0K-238.866360
Energy at 298.15K-238.862258
HF Energy-238.973201
Nuclear repulsion energy76.915956
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/6-31G*
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 3059 2938 51.39 100.72 0.12 0.21
2 A1 1568 1506 4.09 9.12 0.74 0.85
3 A1 1130 1085 97.98 4.52 0.23 0.37
4 A1 519 498 4.17 1.78 0.73 0.85
5 A2 1277 1226 0.00 14.46 0.75 0.86
6 B1 3122 2998 73.01 48.63 0.75 0.86
7 B1 1196 1149 19.98 2.65 0.75 0.86
8 B2 1502 1443 46.26 5.83 0.75 0.86
9 B2 1129 1084 207.49 3.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7250.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 6962.9 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 B3LYP/6-31G*
ABC
1.65511 0.34824 0.30508

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.499
H2 -0.910 0.000 1.110
H3 0.910 0.000 1.110
F4 0.000 1.109 -0.290
F5 0.000 -1.109 -0.290

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09581.09581.36111.3611
H21.09581.81972.00432.0043
H31.09581.81972.00432.0043
F41.36112.00432.00432.2182
F51.36112.00432.00432.2182

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 112.227 H2 C1 F4 108.863
H2 C1 F5 108.863 H3 C1 F4 108.863
H3 C1 F5 108.863 F4 C1 F5 109.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.299      
2 H 0.132      
3 H 0.132      
4 F -0.281      
5 F -0.281      


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 1.718 1.718
CHELPG 0.000 0.000 1.764 1.764
AIM 0.000 0.000 -1.357 1.357
ESP 0.010 0.000 1.758 1.758


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 39.298
(<r2>)1/2 6.269