return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCF (Fluoromethylene)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
2 1 yes CS 3A"

State 1 (1A')

Jump to S2C1
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-138.133135
Energy at 298.15K-138.133020
HF Energy-137.811347
Nuclear repulsion energy27.189342
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2899 2748 169.30      
2 A' 1482 1405 27.81      
3 A' 1242 1177 197.27      

Unscaled Zero Point Vibrational Energy (zpe) 2811.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 2664.7 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 MP2/TZVP
ABC
15.85435 1.22532 1.13742

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.022 0.959 0.000
C2 0.068 0.722 0.000
F3 0.068 -0.588 0.000

Atom - Atom Distances (Å)
  H1 C2 F3
H11.11601.8924
C21.11601.3092
F31.89241.3092

picture of Fluoromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 F3 102.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-138.119125
Energy at 298.15K-138.118994
HF Energy-137.822255
Nuclear repulsion energy26.883140
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3239 3070 8.25 88.57 0.23 0.38
2 A' 1280 1213 122.74 2.60 0.39 0.56
3 A' 1170 1109 33.98 8.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2844.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 2696.4 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/TZVP
ABC
23.26159 1.14495 1.09124

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.867 1.268 0.000
C2 0.058 0.706 0.000
F3 0.058 -0.612 0.000

Atom - Atom Distances (Å)
  H1 C2 F3
H11.08212.0953
C21.08211.3183
F32.09531.3183

picture of Fluoromethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability