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

using model chemistry: B3LYP/6-31G**

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/6-31G**
 hartrees
Energy at 0K-238.976110
Energy at 298.15K-238.978938
HF Energy-238.976110
Nuclear repulsion energy76.905247
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 3042 2923 51.35 102.21 0.11 0.20
2 A1 1553 1492 3.41 8.83 0.74 0.85
3 A1 1131 1087 98.23 4.43 0.24 0.38
4 A1 519 499 4.19 1.76 0.73 0.85
5 A2 1272 1222 0.00 13.96 0.75 0.86
6 B1 3107 2985 69.59 48.72 0.75 0.86
7 B1 1192 1145 19.62 2.50 0.75 0.86
8 B2 1493 1434 41.00 5.37 0.75 0.86
9 B2 1129 1085 207.49 3.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7218.4 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 6935.5 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
1.65329 0.34848 0.30519

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 1.111
H3 0.910 0.000 1.111
F4 0.000 1.109 -0.290
F5 0.000 -1.109 -0.290

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09631.09631.36101.3610
H21.09631.81912.00522.0052
H31.09631.81912.00522.0052
F41.36102.00522.00522.2174
F51.36102.00522.00522.2174

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 112.122 H2 C1 F4 108.894
H2 C1 F5 108.894 H3 C1 F4 108.894
H3 C1 F5 108.894 F4 C1 F5 109.100
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.391      
2 H 0.091      
3 H 0.091      
4 F -0.287      
5 F -0.287      


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 1.715 1.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.063 0.000 0.000
y 0.000 -18.210 0.000
z 0.000 0.000 -14.892
Traceless
 xyz
x 1.489 0.000 0.000
y 0.000 -3.233 0.000
z 0.000 0.000 1.744
Polar
3z2-r23.488
x2-y23.148
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.966 0.000 0.000
y 0.000 1.997 0.000
z 0.000 0.000 1.957


<r2> (average value of r2) Å2
<r2> 39.290
(<r2>)1/2 6.268