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

using model chemistry: B1B95/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-239.012049
Energy at 298.15K-239.014898
HF Energy-239.012049
Nuclear repulsion energy77.601272
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 B1B95/cc-pVTZ
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 3067 2936 46.71 115.85 0.09 0.16
2 A1 1540 1474 0.71 4.52 0.71 0.83
3 A1 1147 1097 103.88 3.49 0.28 0.44
4 A1 535 512 4.78 1.46 0.69 0.81
5 A2 1282 1227 0.00 7.07 0.75 0.86
6 B1 3139 3004 44.12 44.98 0.75 0.86
7 B1 1193 1142 18.69 1.46 0.75 0.86
8 B2 1469 1406 18.83 2.19 0.75 0.86
9 B2 1131 1083 241.08 2.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7251.5 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 6940.4 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 B1B95/cc-pVTZ
ABC
1.66821 0.35631 0.31162

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.499
H2 -0.908 0.000 1.101
H3 0.908 0.000 1.101
F4 0.000 1.096 -0.289
F5 0.000 -1.096 -0.289

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08911.08911.34961.3496
H21.08911.81531.98881.9888
H31.08911.81531.98881.9888
F41.34961.98881.98882.1922
F51.34961.98881.98882.1922

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 112.898 H2 C1 F4 108.810
H2 C1 F5 108.810 H3 C1 F4 108.810
H3 C1 F5 108.810 F4 C1 F5 108.620
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.293      
2 H 0.048      
3 H 0.048      
4 F -0.194      
5 F -0.194      


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 1.847 1.847
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.136 0.000 0.000
y 0.000 -18.651 0.000
z 0.000 0.000 -15.119
Traceless
 xyz
x 1.749 0.000 0.000
y 0.000 -3.523 0.000
z 0.000 0.000 1.774
Polar
3z2-r23.548
x2-y23.514
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.104 0.000 0.000
y 0.000 2.313 0.000
z 0.000 0.000 2.209


<r2> (average value of r2) Å2
<r2> 38.870
(<r2>)1/2 6.235