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

using model chemistry: mPW1PW91/6-31+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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-238.941468
Energy at 298.15K-238.944298
HF Energy-238.941468
Nuclear repulsion energy77.056280
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 mPW1PW91/6-31+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 3105 2955 41.52 104.75 0.10 0.18
2 A1 1538 1464 0.89 6.20 0.75 0.86
3 A1 1133 1079 108.87 5.88 0.17 0.29
4 A1 523 498 5.56 1.57 0.69 0.82
5 A2 1278 1216 0.00 8.76 0.75 0.86
6 B1 3186 3032 33.35 49.55 0.75 0.86
7 B1 1184 1127 17.28 1.32 0.75 0.86
8 B2 1464 1394 24.69 3.94 0.75 0.86
9 B2 1114 1060 274.77 2.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7262.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 6912.5 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 mPW1PW91/6-31+G**
ABC
1.64795 0.35093 0.30707

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.504
H2 -0.914 0.000 1.101
H3 0.914 0.000 1.101
F4 0.000 1.104 -0.290
F5 0.000 -1.104 -0.290

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09191.09191.36041.3604
H21.09191.82811.99781.9978
H31.09191.82811.99781.9978
F41.36041.99781.99782.2090
F51.36041.99781.99782.2090

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 113.683 H2 C1 F4 108.621
H2 C1 F5 108.621 H3 C1 F4 108.621
H3 C1 F5 108.621 F4 C1 F5 108.566
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.288      
2 H 0.150      
3 H 0.150      
4 F -0.294      
5 F -0.294      


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 2.107 2.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.293 0.000 0.000
y 0.000 -19.332 0.000
z 0.000 0.000 -15.334
Traceless
 xyz
x 2.040 0.000 0.000
y 0.000 -4.019 0.000
z 0.000 0.000 1.979
Polar
3z2-r23.958
x2-y24.039
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.154 0.000 0.000
y 0.000 2.399 0.000
z 0.000 0.000 2.250


<r2> (average value of r2) Å2
<r2> 39.496
(<r2>)1/2 6.285