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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-238.909311
Energy at 298.15K-238.912153
HF Energy-238.909311
Nuclear repulsion energy77.439342
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 B1B95/6-31G*
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 3089 2933 50.44 101.39 0.11 0.21
2 A1 1575 1496 4.11 8.92 0.74 0.85
3 A1 1163 1104 102.20 4.34 0.23 0.38
4 A1 528 501 4.73 1.66 0.74 0.85
5 A2 1288 1223 0.00 14.16 0.75 0.86
6 B1 3156 2996 69.93 47.74 0.75 0.86
7 B1 1204 1143 20.60 2.44 0.75 0.86
8 B2 1509 1432 49.92 5.60 0.75 0.86
9 B2 1171 1112 208.25 3.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7341.6 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 6969.4 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 B1B95/6-31G*
ABC
1.67212 0.35379 0.30981

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.496
H2 -0.907 0.000 1.106
H3 0.907 0.000 1.106
F4 0.000 1.100 -0.288
F5 0.000 -1.100 -0.288

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09301.09301.35101.3510
H21.09301.81401.99411.9941
H31.09301.81401.99411.9941
F41.35101.99411.99412.2003
F51.35101.99411.99412.2003

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 112.155 H2 C1 F4 108.898
H2 C1 F5 108.898 H3 C1 F4 108.898
H3 C1 F5 108.898 F4 C1 F5 109.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.286      
2 H 0.144      
3 H 0.144      
4 F -0.287      
5 F -0.287      


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
Primitive
 xyz
x -14.986 0.000 0.000
y 0.000 -18.146 0.000
z 0.000 0.000 -14.815
Traceless
 xyz
x 1.494 0.000 0.000
y 0.000 -3.245 0.000
z 0.000 0.000 1.751
Polar
3z2-r23.502
x2-y23.159
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.934 0.000 0.000
y 0.000 1.925 0.000
z 0.000 0.000 1.912


<r2> (average value of r2) Å2
<r2> 38.830
(<r2>)1/2 6.231