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All results from a given calculation for CF2 (Difluoromethylene)

using model chemistry: PBEPBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-236.163172
Energy at 298.15K-236.162864
HF Energy-236.163172
Nuclear repulsion energy61.669551
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 PBEPBE/3-21G*
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 1129 1077 81.18 9.24 0.24 0.39
2 A1 567 541 4.46 1.88 0.59 0.74
3 B2 1068 1018 194.13 5.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1382.0 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1317.7 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 PBEPBE/3-21G*
ABC
2.58933 0.38281 0.33351

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.634
F2 0.000 1.077 -0.211
F3 0.000 -1.077 -0.211

Atom - Atom Distances (Å)
  C1 F2 F3
C11.36851.3685
F21.36852.1531
F31.36852.1531

picture of Difluoromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 103.747
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.417      
2 F -0.209      
3 F -0.209      


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 -0.669 0.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.794 0.000 0.000
y 0.000 -15.799 0.000
z 0.000 0.000 -16.684
Traceless
 xyz
x 2.448 0.000 0.000
y 0.000 -0.560 0.000
z 0.000 0.000 -1.887
Polar
3z2-r2-3.775
x2-y22.006
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.147 0.000 0.000
y 0.000 2.107 0.000
z 0.000 0.000 1.259


<r2> (average value of r2) Å2
<r2> 33.708
(<r2>)1/2 5.806

State 2 (3B1)

Jump to S1C1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-236.083940
Energy at 298.15K-236.083570
Nuclear repulsion energy59.766781
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 PBEPBE/3-21G*
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 1043 995 21.77      
2 A1 469 447 5.89      
3 B2 1274 1215 141.96      

Unscaled Zero Point Vibrational Energy (zpe) 1392.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1328.0 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 PBEPBE/3-21G*
ABC
4.17526 0.31127 0.28968

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.499
F2 0.000 1.194 -0.166
F3 0.000 -1.194 -0.166

Atom - Atom Distances (Å)
  C1 F2 F3
C11.36681.3668
F21.36682.3877
F31.36682.3877

picture of Difluoromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 121.736
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.394      
2 F -0.197      
3 F -0.197      


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 0.084 0.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.805 0.000 0.000
y 0.000 -15.849 0.000
z 0.000 0.000 -14.507
Traceless
 xyz
x 0.373 0.000 0.000
y 0.000 -1.192 0.000
z 0.000 0.000 0.820
Polar
3z2-r21.639
x2-y21.043
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.715 0.000 0.000
y 0.000 2.042 0.000
z 0.000 0.000 1.188


<r2> (average value of r2) Å2
<r2> 37.050
(<r2>)1/2 6.087