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 C2ClF3 (Ethene, chlorotrifluoro-)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-834.377935
Energy at 298.15K 
HF Energy-833.459134
Nuclear repulsion energy292.638260
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 1898 1807 45.07      
2 A' 1397 1330 144.06      
3 A' 1266 1206 189.19      
4 A' 1092 1040 221.27      
5 A' 701 668 3.12      
6 A' 517 492 1.26      
7 A' 464 442 1.16      
8 A' 341 324 1.38      
9 A' 188 179 3.24      
10 A" 522 497 3.51      
11 A" 376 359 2.76      
12 A" 173 165 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 4467.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 4254.3 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/6-31G*
ABC
0.14818 0.07461 0.04962

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.676 -0.676 0.000
C2 0.000 0.469 0.000
F3 -2.000 -0.739 0.000
F4 -0.102 -1.871 0.000
F5 -0.668 1.634 0.000
Cl6 1.705 0.590 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 Cl6
C11.32961.32601.32542.31002.6964
C21.32962.33672.34231.34301.7095
F31.32602.33672.20982.72113.9364
F41.32542.34232.20983.55043.0532
F52.31001.34302.72113.55042.5931
Cl62.69641.70953.93643.05322.5931

picture of Ethene, chlorotrifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F5 119.614 C1 C2 Cl6 124.587
C2 C1 F3 123.259 C2 C1 F4 123.826
F3 C1 F4 112.916 F5 C2 Cl6 115.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability