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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-238.682355
Energy at 298.15K-238.685140
HF Energy-238.682355
Nuclear repulsion energy75.261441
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 PBE1PBE/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 3130 2992 31.28 105.45 0.11 0.20
2 A1 1564 1495 0.57 9.89 0.74 0.85
3 A1 1078 1031 83.25 5.92 0.19 0.32
4 A1 482 461 8.47 2.71 0.73 0.85
5 A2 1256 1201 0.00 16.40 0.75 0.86
6 B1 3219 3077 44.02 44.92 0.75 0.86
7 B1 1152 1101 15.24 3.91 0.75 0.86
8 B2 1474 1409 23.16 6.29 0.75 0.86
9 B2 1102 1053 179.76 4.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7228.1 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 6909.4 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 PBE1PBE/6-31G
ABC
1.59969 0.33167 0.29058

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.516
H2 -0.912 0.000 1.113
H3 0.912 0.000 1.113
F4 0.000 1.137 -0.296
F5 0.000 -1.137 -0.296

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08961.08961.39731.3973
H21.08961.82342.02692.0269
H31.08961.82342.02692.0269
F41.39732.02692.02692.2747
F51.39732.02692.02692.2747

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 113.601 H2 C1 F4 108.548
H2 C1 F5 108.548 H3 C1 F4 108.548
H3 C1 F5 108.548 F4 C1 F5 108.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.294      
2 H 0.180      
3 H 0.180      
4 F -0.327      
5 F -0.327      


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 2.349 2.349
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.984 0.000 0.000
y 0.000 -19.501 0.000
z 0.000 0.000 -14.866
Traceless
 xyz
x 2.200 0.000 0.000
y 0.000 -4.577 0.000
z 0.000 0.000 2.377
Polar
3z2-r24.754
x2-y24.517
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.622 0.000 0.000
y 0.000 1.923 0.000
z 0.000 0.000 1.705


<r2> (average value of r2) Å2
<r2> 40.869
(<r2>)1/2 6.393