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 ClF3 (Chlorine trifluoride)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
1 2 no C2V 1A1

Conformer 1 (D3H)

Jump to S1C2
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-86.277119
Energy at 298.15K-86.277372
HF Energy-85.783212
Nuclear repulsion energy63.178146
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/CEP-31G
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' 407 393 0.00      
2 A2" 272 263 26.16      
3 E' 154 148 11.17      
3 E' 154 148 11.17      
4 E' 456 441 3.09      
4 E' 456 441 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 949.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 917.1 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/CEP-31G
ABC
0.15683 0.15683 0.07841

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.000
F2 0.000 1.942 0.000
F3 1.682 -0.971 0.000
F4 -1.682 -0.971 0.000

Atom - Atom Distances (Å)
  Cl1 F2 F3 F4
Cl11.94211.94211.9421
F21.94213.36393.3639
F31.94213.36393.3639
F41.94213.36393.3639

picture of Chlorine trifluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Cl1 F3 120.000 F2 Cl1 F4 120.000
F3 Cl1 F4 120.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-86.264057
Energy at 298.15K-86.264385
HF Energy-85.813671
Nuclear repulsion energy66.737897
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/CEP-31G
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 630 609 31.09      
2 A1 289 279 0.27      
3 A1 104 100 12.34      
4 B1 199 192 24.08      
5 B2 654 632 14.21      
6 B2 246 238 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 1060.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 1024.7 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/CEP-31G
ABC
0.35743 0.11266 0.08566

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.388
F2 0.000 0.000 -1.407
F3 0.000 1.984 0.336
F4 0.000 -1.984 0.336

Atom - Atom Distances (Å)
  Cl1 F2 F3 F4
Cl11.79501.98511.9851
F21.79502.64132.6413
F31.98512.64133.9688
F41.98512.64133.9688

picture of Chlorine trifluoride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Cl1 F3 88.502 F2 Cl1 F4 88.502
F3 Cl1 F4 177.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability