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

using model chemistry: HF/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/cc-pV(T+d)Z
 hartrees
Energy at 0K-237.996084
Energy at 298.15K 
HF Energy-237.996084
Nuclear repulsion energy78.601586
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 HF/cc-pV(T+d)Z
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 3227 2937 54.22 108.69 0.09 0.16
2 A1 1679 1528 2.26 3.71 0.73 0.84
3 A1 1234 1123 136.75 3.63 0.26 0.42
4 A1 585 532 6.69 1.10 0.67 0.80
5 A2 1400 1274 0.00 5.81 0.75 0.86
6 B1 3295 2999 54.15 39.60 0.75 0.86
7 B1 1298 1182 28.81 1.03 0.75 0.86
8 B2 1607 1463 29.38 1.30 0.75 0.86
9 B2 1235 1124 271.15 3.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7779.0 cm-1
Scaled (by 0.9103) Zero Point Vibrational Energy (zpe) 7081.2 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 HF/cc-pV(T+d)Z
ABC
1.69850 0.36693 0.32038

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.494
H2 -0.898 0.000 1.093
H3 0.898 0.000 1.093
F4 0.000 1.080 -0.286
F5 0.000 -1.080 -0.286

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.07931.07931.33221.3322
H21.07931.79581.96821.9682
H31.07931.79581.96821.9682
F41.33221.96821.96822.1600
F51.33221.96821.96822.1600

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 112.596 H2 C1 F4 108.958
H2 C1 F5 108.958 H3 C1 F4 108.958
H3 C1 F5 108.958 F4 C1 F5 108.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.427      
2 H 0.039      
3 H 0.039      
4 F -0.253      
5 F -0.253      


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 2.051 2.051
CHELPG        
AIM        
ESP 0.014 0.000 2.095 2.095


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.967 0.000 0.000
y 0.000 -18.908 0.000
z 0.000 0.000 -15.012
Traceless
 xyz
x 1.993 0.000 0.000
y 0.000 -3.918 0.000
z 0.000 0.000 1.925
Polar
3z2-r23.851
x2-y23.941
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.947 0.000 0.000
y 0.000 2.084 0.000
z 0.000 0.000 2.020


<r2> (average value of r2) Å2
<r2> 38.110
(<r2>)1/2 6.173