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

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-238.919883
Energy at 298.15K-238.922728
HF Energy-238.919883
Nuclear repulsion energy77.318511
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 mPW1PW91/6-31G**
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 3072 2923 50.88 104.30 0.11 0.20
2 A1 1562 1486 3.16 8.50 0.74 0.85
3 A1 1158 1102 101.65 4.25 0.24 0.39
4 A1 529 503 4.59 1.66 0.73 0.85
5 A2 1285 1222 0.00 13.52 0.75 0.86
6 B1 3140 2988 66.84 48.64 0.75 0.86
7 B1 1201 1143 19.61 2.28 0.75 0.86
8 B2 1500 1428 41.73 5.09 0.75 0.86
9 B2 1164 1108 209.80 3.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7305.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 6951.1 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 mPW1PW91/6-31G**
ABC
1.66715 0.35267 0.30881

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.497
H2 -0.908 0.000 1.108
H3 0.908 0.000 1.108
F4 0.000 1.102 -0.289
F5 0.000 -1.102 -0.289

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09461.09461.35311.3531
H21.09461.81611.99721.9972
H31.09461.81611.99721.9972
F41.35311.99721.99722.2039
F51.35311.99721.99722.2039

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 112.100 H2 C1 F4 108.909
H2 C1 F5 108.909 H3 C1 F4 108.909
H3 C1 F5 108.909 F4 C1 F5 109.058
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.363      
2 H 0.112      
3 H 0.112      
4 F -0.293      
5 F -0.293      


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 1.738 1.738
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.983 0.000 0.000
y 0.000 -18.163 0.000
z 0.000 0.000 -14.814
Traceless
 xyz
x 1.506 0.000 0.000
y 0.000 -3.265 0.000
z 0.000 0.000 1.759
Polar
3z2-r23.518
x2-y23.180
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.958 0.000 0.000
y 0.000 1.967 0.000
z 0.000 0.000 1.940


<r2> (average value of r2) Å2
<r2> 38.924
(<r2>)1/2 6.239