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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-238.836903
Energy at 298.15K-238.839700
HF Energy-238.836903
Nuclear repulsion energy76.506767
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/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 2955 2935 48.44 125.08 0.09 0.16
2 A1 1475 1464 0.43 5.03 0.68 0.81
3 A1 1081 1073 90.37 3.65 0.30 0.46
4 A1 509 506 3.44 1.77 0.69 0.82
5 A2 1221 1213 0.00 8.05 0.75 0.86
6 B1 3022 3001 49.52 50.76 0.75 0.86
7 B1 1144 1136 15.12 1.87 0.75 0.86
8 B2 1404 1394 13.91 2.87 0.75 0.86
9 B2 1048 1041 232.34 2.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6929.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 6881.5 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 PBEPBEultrafine/cc-pVTZ
ABC
1.63142 0.34530 0.30240

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.505
H2 -0.919 0.000 1.111
H3 0.919 0.000 1.111
F4 0.000 1.114 -0.292
F5 0.000 -1.114 -0.292

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10141.10141.36901.3690
H21.10141.83872.01332.0133
H31.10141.83872.01332.0133
F41.36902.01332.01332.2271
F51.36902.01332.01332.2271

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 113.165 H2 C1 F4 108.685
H2 C1 F5 108.685 H3 C1 F4 108.685
H3 C1 F5 108.685 F4 C1 F5 108.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.288      
2 H 0.033      
3 H 0.033      
4 F -0.177      
5 F -0.177      


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 1.731 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.393 0.000 0.000
y 0.000 -18.690 0.000
z 0.000 0.000 -15.340
Traceless
 xyz
x 1.622 0.000 0.000
y 0.000 -3.324 0.000
z 0.000 0.000 1.702
Polar
3z2-r23.404
x2-y23.297
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.226 0.000 0.000
y 0.000 2.484 0.000
z 0.000 0.000 2.345


<r2> (average value of r2) Å2
<r2> 39.830
(<r2>)1/2 6.311