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

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-239.088401
Energy at 298.15K-239.091224
HF Energy-239.088401
Nuclear repulsion energy76.933182
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 B3LYP/aug-cc-pVTZ
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 3052 2953 40.62 122.15 0.06 0.12
2 A1 1528 1478 0.15 3.25 0.72 0.83
3 A1 1104 1068 99.59 6.20 0.16 0.27
4 A1 522 505 4.61 1.18 0.62 0.77
5 A2 1266 1225 0.00 4.25 0.75 0.86
6 B1 3122 3021 29.79 43.50 0.75 0.86
7 B1 1177 1139 15.53 0.58 0.75 0.86
8 B2 1449 1402 10.57 0.59 0.75 0.86
9 B2 1064 1029 260.82 2.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7141.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 6909.6 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 B3LYP/aug-cc-pVTZ
ABC
1.64027 0.35000 0.30601

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.506
H2 -0.912 0.000 1.103
H3 0.912 0.000 1.103
F4 0.000 1.106 -0.291
F5 0.000 -1.106 -0.291

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08981.08981.36361.3636
H21.08981.82411.99961.9996
H31.08981.82411.99961.9996
F41.36361.99961.99962.2122
F51.36361.99961.99962.2122

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 113.629 H2 C1 F4 108.668
H2 C1 F5 108.668 H3 C1 F4 108.668
H3 C1 F5 108.668 F4 C1 F5 108.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.194      
2 H 0.247      
3 H 0.247      
4 F -0.344      
5 F -0.344      


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 1.977 1.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.409 0.000 0.000
y 0.000 -19.344 0.000
z 0.000 0.000 -15.503
Traceless
 xyz
x 2.014 0.000 0.000
y 0.000 -3.888 0.000
z 0.000 0.000 1.873
Polar
3z2-r23.746
x2-y23.935
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.514 0.000 0.000
y 0.000 2.849 0.000
z 0.000 0.000 2.664


<r2> (average value of r2) Å2
<r2> 39.645
(<r2>)1/2 6.296