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

using model chemistry: TPSSh/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 TPSSh/6-31G*
 hartrees
Energy at 0K-238.970451
Energy at 298.15K-238.973268
HF Energy-238.970451
Nuclear repulsion energy76.769102
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 TPSSh/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 3067 2943 52.77 109.06 0.12 0.21
2 A1 1579 1514 4.82 8.96 0.73 0.84
3 A1 1124 1078 97.26 4.62 0.23 0.37
4 A1 511 490 4.16 1.87 0.73 0.85
5 A2 1275 1223 0.00 14.60 0.75 0.86
6 B1 3134 3007 77.29 52.04 0.75 0.86
7 B1 1194 1146 18.91 2.93 0.75 0.86
8 B2 1499 1438 44.57 5.95 0.75 0.86
9 B2 1120 1075 211.76 3.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7251.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6956.6 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 TPSSh/6-31G*
ABC
1.64663 0.34725 0.30408

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.502
H2 -0.911 0.000 1.109
H3 0.911 0.000 1.109
F4 0.000 1.111 -0.291
F5 0.000 -1.111 -0.291

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09421.09421.36471.3647
H21.09421.82182.00522.0052
H31.09421.82182.00522.0052
F41.36472.00522.00522.2214
F51.36472.00522.00522.2214

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 112.715 H2 C1 F4 108.778
H2 C1 F5 108.778 H3 C1 F4 108.778
H3 C1 F5 108.778 F4 C1 F5 108.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.276      
2 H 0.145      
3 H 0.145      
4 F -0.283      
5 F -0.283      


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 1.737 1.737
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.958 0.000 0.000
y 0.000 1.996 0.000
z 0.000 0.000 1.953


<r2> (average value of r2) Å2
<r2> 39.356
(<r2>)1/2 6.273