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

using model chemistry: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-238.829416
Energy at 298.15K-238.832267
HF Energy-238.635351
Nuclear repulsion energy77.523607
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 B2PLYP/6-31G(2df,p)
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 3066 2928 46.88 92.83 0.11 0.19
2 A1 1563 1493 1.97 6.92 0.74 0.85
3 A1 1148 1097 90.76 4.67 0.18 0.30
4 A1 535 511 4.20 1.38 0.68 0.81
5 A2 1293 1235 0.00 10.22 0.75 0.86
6 B1 3132 2991 58.41 43.50 0.75 0.86
7 B1 1210 1155 19.84 1.82 0.75 0.86
8 B2 1507 1439 30.71 3.54 0.75 0.86
9 B2 1150 1098 198.58 2.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7302.4 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 6973.8 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 B2PLYP/6-31G(2df,p)
ABC
1.66965 0.35519 0.31079

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

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 1.108
H3 0.907 0.000 1.108
F4 0.000 1.098 -0.288
F5 0.000 -1.098 -0.288

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09381.09381.34941.3494
H21.09381.81361.99421.9942
H31.09381.81361.99421.9942
F41.34941.99421.99422.1959
F51.34941.99421.99422.1959

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 111.996 H2 C1 F4 108.972
H2 C1 F5 108.972 H3 C1 F4 108.972
H3 C1 F5 108.972 F4 C1 F5 108.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 H 0.112      
3 H 0.112      
4 F -0.141      
5 F -0.141      


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 1.667 1.667
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.052 0.000 0.000
y 0.000 -18.284 0.000
z 0.000 0.000 -14.977
Traceless
 xyz
x 1.579 0.000 0.000
y 0.000 -3.270 0.000
z 0.000 0.000 1.691
Polar
3z2-r23.382
x2-y23.232
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.139 0.000 0.000
y 0.000 2.201 0.000
z 0.000 0.000 2.148


<r2> (average value of r2) Å2
<r2> 38.831
(<r2>)1/2 6.231