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

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-238.778283
Energy at 298.15K-238.781051
HF Energy-238.778283
Nuclear repulsion energy75.940204
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 PBEPBEultrafine/aug-cc-pVDZ
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 2979 2961 41.86 128.27 0.07 0.13
2 A1 1435 1426 0.02 3.58 0.72 0.84
3 A1 1058 1051 89.04 6.44 0.16 0.28
4 A1 493 490 3.74 1.44 0.64 0.78
5 A2 1197 1190 0.00 4.69 0.75 0.86
6 B1 3061 3043 30.59 49.06 0.75 0.86
7 B1 1118 1111 11.97 0.70 0.75 0.86
8 B2 1364 1356 6.57 0.90 0.75 0.86
9 B2 1015 1009 258.19 2.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6859.6 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 6817.8 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
1.59852 0.34102 0.29840

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.513
H2 -0.930 0.000 1.114
H3 0.930 0.000 1.114
F4 0.000 1.120 -0.295
F5 0.000 -1.120 -0.295

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10741.10741.38091.3809
H21.10741.86002.02582.0258
H31.10741.86002.02582.0258
F41.38092.02582.02582.2406
F51.38092.02582.02582.2406

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 114.230 H2 C1 F4 108.507
H2 C1 F5 108.507 H3 C1 F4 108.507
H3 C1 F5 108.507 F4 C1 F5 108.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.175      
2 H -0.250      
3 H -0.250      
4 F -0.337      
5 F -0.337      


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 1.896 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.600 0.000 0.000
y 0.000 -19.342 0.000
z 0.000 0.000 -15.665
Traceless
 xyz
x 1.903 0.000 0.000
y 0.000 -3.709 0.000
z 0.000 0.000 1.806
Polar
3z2-r23.612
x2-y23.742
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.602 0.000 0.000
y 0.000 3.022 0.000
z 0.000 0.000 2.786


<r2> (average value of r2) Å2
<r2> 40.479
(<r2>)1/2 6.362