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All results from a given calculation for C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: QCISD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-633.196709
Energy at 298.15K-633.198981
HF Energy-632.734380
Nuclear repulsion energy146.786896
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/3-21G*
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' 3277 3149 0.09      
2 A' 3182 3058 2.46      
3 A' 1718 1651 78.64      
4 A' 1490 1432 1.19      
5 A' 1236 1188 132.55      
6 A' 983 945 24.90      
7 A' 663 637 43.53      
8 A' 416 400 1.26      
9 A' 373 359 0.65      
10 A" 929 893 76.10      
11 A" 739 711 1.02      
12 A" 522 502 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7763.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 7461.6 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/3-21G*
ABC
0.33998 0.16464 0.11092

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.462 0.000
C2 -1.030 1.304 0.000
F3 1.313 0.869 0.000
Cl4 -0.160 -1.278 0.000
H5 -0.857 2.376 0.000
H6 -2.049 0.936 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.33051.37401.74772.09672.1033
C21.33052.38282.72491.08571.0836
F31.37402.38282.60362.64133.3625
Cl41.74772.72492.60363.71982.9104
H52.09671.08572.64133.71981.8697
H62.10331.08363.36252.91041.8697

picture of 1-chloro-1-fluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 120.058 C1 C2 H6 120.877
C2 C1 F3 123.531 C2 C1 Cl4 123.994
F3 C1 Cl4 112.475 H5 C2 H6 119.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability