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

using model chemistry: PBEPBEultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-238.760120
Energy at 298.15K-238.762893
HF Energy-238.760120
Nuclear repulsion energy76.043259
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/6-31+G**
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 2993 2959 42.47 111.09 0.10 0.18
2 A1 1472 1455 0.61 6.49 0.75 0.86
3 A1 1069 1057 96.80 6.52 0.16 0.28
4 A1 495 490 4.26 1.87 0.69 0.82
5 A2 1216 1202 0.00 9.06 0.75 0.86
6 B1 3071 3036 35.63 55.22 0.75 0.86
7 B1 1133 1120 13.82 1.57 0.75 0.86
8 B2 1397 1381 19.98 4.50 0.75 0.86
9 B2 1031 1020 277.25 2.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6938.2 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 6859.1 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 PBEPBEultrafine/6-31+G**
ABC
1.61254 0.34095 0.29865

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.510
H2 -0.925 0.000 1.110
H3 0.925 0.000 1.110
F4 0.000 1.121 -0.293
F5 0.000 -1.121 -0.293

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10291.10291.37891.3789
H21.10291.85042.02052.0205
H31.10291.85042.02052.0205
F41.37892.02052.02052.2413
F51.37892.02052.02052.2413

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 114.041 H2 C1 F4 108.493
H2 C1 F5 108.493 H3 C1 F4 108.493
H3 C1 F5 108.493 F4 C1 F5 108.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.234      
2 H 0.151      
3 H 0.151      
4 F -0.268      
5 F -0.268      


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 2.027 2.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.573 0.000 0.000
y 0.000 -19.490 0.000
z 0.000 0.000 -15.602
Traceless
 xyz
x 1.973 0.000 0.000
y 0.000 -3.903 0.000
z 0.000 0.000 1.929
Polar
3z2-r23.859
x2-y23.917
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.296 0.000 0.000
y 0.000 2.647 0.000
z 0.000 0.000 2.428


<r2> (average value of r2) Å2
<r2> 40.442
(<r2>)1/2 6.359