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

using model chemistry: PBEPBEultrafine/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-238.779145
Energy at 298.15K-238.781917
HF Energy-238.779145
Nuclear repulsion energy75.970317
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 PBEPBEultrafine/daug-cc-pVDZ
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 2977 2977 42.36 133.51 0.07 0.12
2 A1 1440 1440 0.03 3.61 0.72 0.83
3 A1 1058 1058 88.71 7.02 0.14 0.25
4 A1 495 495 3.70 1.35 0.62 0.76
5 A2 1200 1200 0.00 4.77 0.75 0.86
6 B1 3059 3059 31.30 50.11 0.75 0.86
7 B1 1120 1120 11.78 0.63 0.75 0.86
8 B2 1364 1364 6.99 1.00 0.75 0.86
9 B2 1016 1016 259.57 2.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6863.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6863.9 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 PBEPBEultrafine/daug-cc-pVDZ
ABC
1.60236 0.34103 0.29853

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.512
H2 -0.930 0.000 1.113
H3 0.930 0.000 1.113
F4 0.000 1.120 -0.294
F5 0.000 -1.120 -0.294

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10701.10701.38011.3801
H21.10701.85922.02462.0246
H31.10701.85922.02462.0246
F41.38012.02462.02462.2406
F51.38012.02462.02462.2406

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 114.229 H2 C1 F4 108.488
H2 C1 F5 108.488 H3 C1 F4 108.488
H3 C1 F5 108.488 F4 C1 F5 108.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.587      
2 H -0.244      
3 H -0.244      
4 F -0.550      
5 F -0.550      


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 1.884 1.884
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.596 0.000 0.000
y 0.000 -19.315 0.000
z 0.000 0.000 -15.659
Traceless
 xyz
x 1.891 0.000 0.000
y 0.000 -3.687 0.000
z 0.000 0.000 1.796
Polar
3z2-r23.592
x2-y23.719
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.717 0.000 0.000
y 0.000 3.101 0.000
z 0.000 0.000 2.877


<r2> (average value of r2) Å2
<r2> 40.455
(<r2>)1/2 6.360