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All results from a given calculation for CF2 (Difluoromethylene)

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G
 hartrees
Energy at 0K-235.695740
Energy at 298.15K-235.695486
HF Energy-235.373209
Nuclear repulsion energy62.439986
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 MP2=FULL/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 1221 1166 102.34      
2 A1 617 589 8.77      
3 B2 1167 1114 263.59      

Unscaled Zero Point Vibrational Energy (zpe) 1502.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1434.6 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 MP2=FULL/3-21G
ABC
2.69491 0.39039 0.34100

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.621
F2 0.000 1.066 -0.207
F3 0.000 -1.066 -0.207

Atom - Atom Distances (Å)
  C1 F2 F3
C11.34991.3499
F21.34992.1321
F31.34992.1321

picture of Difluoromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 104.313
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-235.625132
Energy at 298.15K-235.624800
Nuclear repulsion energy60.059988
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 MP2=FULL/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 1105 1055 42.87      
2 A1 496 474 13.04      
3 B2 1347 1286 172.23      

Unscaled Zero Point Vibrational Energy (zpe) 1474.2 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1407.5 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 MP2=FULL/3-21G
ABC
4.16291 0.31514 0.29296

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.500
F2 0.000 1.187 -0.167
F3 0.000 -1.187 -0.167

Atom - Atom Distances (Å)
  C1 F2 F3
C11.36081.3608
F21.36082.3730
F31.36082.3730

picture of Difluoromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 121.362
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability