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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-238.833490
Energy at 298.15K 
HF Energy-238.833490
Nuclear repulsion energy75.053126
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 B3PW91/6-31G
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 3116 2984 33.37      
2 A1 1558 1492 0.60      
3 A1 1063 1018 81.72      
4 A1 477 457 8.06      
5 A2 1249 1196 0.00      
6 B1 3204 3069 47.37      
7 B1 1146 1097 14.69      
8 B2 1468 1405 22.52      
9 B2 1081 1036 180.57      

Unscaled Zero Point Vibrational Energy (zpe) 7181.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 6877.4 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 B3PW91/6-31G
ABC
1.59534 0.32936 0.28867

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.517
H2 -0.912 0.000 1.114
H3 0.912 0.000 1.114
F4 0.000 1.141 -0.296
F5 0.000 -1.141 -0.296

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08981.08981.40151.4015
H21.08981.82412.03032.0303
H31.08981.82412.03032.0303
F41.40152.03032.03032.2829
F51.40152.03032.03032.2829

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 113.632 H2 C1 F4 108.518
H2 C1 F5 108.518 H3 C1 F4 108.518
H3 C1 F5 108.518 F4 C1 F5 109.061
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.292      
2 H 0.176      
3 H 0.176      
4 F -0.322      
5 F -0.322      


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 2.340 2.340
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.955 0.000 0.000
y 0.000 -19.463 0.000
z 0.000 0.000 -14.834
Traceless
 xyz
x 2.194 0.000 0.000
y 0.000 -4.568 0.000
z 0.000 0.000 2.375
Polar
3z2-r24.749
x2-y24.508
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.628 0.000 0.000
y 0.000 1.946 0.000
z 0.000 0.000 1.718


<r2> (average value of r2) Å2
<r2> 41.034
(<r2>)1/2 6.406