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/aug-cc-pVDZ

19 10 17 12 22

States and conformations

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

Conformer 1 (D3H)

Jump to S1C2
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-758.367142
Energy at 298.15K-758.367718
HF Energy-757.484829
Nuclear repulsion energy177.973144
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/aug-cc-pVDZ
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' 534 512 0.00      
2 A2" 384 369 19.62      
3 E' 114 109 2.20      
3 E' 114 109 2.20      
4 E' 597 573 153.61      
4 E' 597 573 153.61      

Unscaled Zero Point Vibrational Energy (zpe) 1170.4 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 1122.4 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/aug-cc-pVDZ
ABC
0.18630 0.18630 0.09315

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.000
F2 0.000 1.782 0.000
F3 1.543 -0.891 0.000
F4 -1.543 -0.891 0.000

Atom - Atom Distances (Å)
  Cl1 F2 F3 F4
Cl11.78191.78191.7819
F21.78193.08643.0864
F31.78193.08643.0864
F41.78193.08643.0864

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/aug-cc-pVDZ
 hartrees
Energy at 0K-758.384439
Energy at 298.15K-758.385687
HF Energy-757.551568
Nuclear repulsion energy189.836692
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/aug-cc-pVDZ
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 756 725 50.46      
2 A1 518 497 2.52      
3 A1 285 273 13.48      
4 B1 306 294 17.87      
5 B2 735 705 442.28      
6 B2 390 374 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 1495.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 1433.9 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/aug-cc-pVDZ
ABC
0.43160 0.14384 0.10788

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.369
F2 0.000 0.000 -1.279
F3 0.000 1.756 0.291
F4 0.000 -1.756 0.291

Atom - Atom Distances (Å)
  Cl1 F2 F3 F4
Cl11.64781.75801.7580
F21.64782.35602.3560
F31.75802.35603.5125
F41.75802.35603.5125

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 87.477 F2 Cl1 F4 87.477
F3 Cl1 F4 174.955
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability