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All results from a given calculation for CF2 (Difluoromethylene)

using model chemistry: QCISD/6-311G*

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 QCISD/6-311G*
 hartrees
Energy at 0K-237.261175
Energy at 298.15K-237.260958
HF Energy-236.723694
Nuclear repulsion energy64.667190
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 QCISD/6-311G*
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 1267 1213 128.47      
2 A1 680 651 4.43      
3 B2 1172 1122 377.66      

Unscaled Zero Point Vibrational Energy (zpe) 1560.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 1493.5 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 QCISD/6-311G*
ABC
2.92309 0.41715 0.36505

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.596
F2 0.000 1.031 -0.199
F3 0.000 -1.031 -0.199

Atom - Atom Distances (Å)
  C1 F2 F3
C11.30231.3023
F21.30232.0626
F31.30232.0626

picture of Difluoromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 104.729
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-237.176476
Energy at 298.15K-237.176170
Nuclear repulsion energy62.198711
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 QCISD/6-311G*
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 1162 1112 56.46      
2 A1 523 501 9.38      
3 B2 1351 1293 282.65      

Unscaled Zero Point Vibrational Energy (zpe) 1517.8 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 1453.2 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 QCISD/6-311G*
ABC
4.19225 0.34244 0.31658

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.498
F2 0.000 1.138 -0.166
F3 0.000 -1.138 -0.166

Atom - Atom Distances (Å)
  C1 F2 F3
C11.31781.3178
F21.31782.2765
F31.31782.2765

picture of Difluoromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 119.483
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability