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

using model chemistry: B3LYP/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-55.176281
Energy at 298.15K-55.179015
HF Energy-55.176281
Nuclear repulsion energy43.436971
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/CEP-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 3105 3007 50.92 112.70 0.11 0.20
2 A1 1501 1453 0.14 7.47 0.71 0.83
3 A1 1018 986 82.15 9.07 0.16 0.28
4 A1 465 450 8.35 3.23 0.67 0.80
5 A2 1213 1175 0.00 11.74 0.75 0.86
6 B1 3217 3115 49.12 45.91 0.75 0.86
7 B1 1124 1088 14.16 4.18 0.75 0.86
8 B2 1428 1383 13.49 4.09 0.75 0.86
9 B2 1008 976 214.53 6.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7038.8 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 6816.3 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/CEP-31G
ABC
1.53318 0.32319 0.28251

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.533
H2 -0.930 0.000 1.119
H3 0.930 0.000 1.119
F4 0.000 1.152 -0.302
F5 0.000 -1.152 -0.302

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09911.09911.42291.4229
H21.09911.85962.05232.0523
H31.09911.85962.05232.0523
F41.42292.05232.05232.3038
F51.42292.05232.05232.3038

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 115.551 H2 C1 F4 108.243
H2 C1 F5 108.243 H3 C1 F4 108.243
H3 C1 F5 108.243 F4 C1 F5 108.100
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 H 0.213      
3 H 0.213      
4 F -0.204      
5 F -0.204      


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 2.764 2.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.918 0.000 0.000
y 0.000 -20.454 0.000
z 0.000 0.000 -14.990
Traceless
 xyz
x 2.804 0.000 0.000
y 0.000 -5.500 0.000
z 0.000 0.000 2.696
Polar
3z2-r25.392
x2-y25.536
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.515 0.000 0.000
y 0.000 2.098 0.000
z 0.000 0.000 1.751


<r2> (average value of r2) Å2
<r2> 35.712
(<r2>)1/2 5.976