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

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-636.065938
Energy at 298.15K-636.068089
HF Energy-635.690740
Nuclear repulsion energy143.534052
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' 3277 3157 0.23      
2 A' 3176 3060 1.85      
3 A' 1715 1653 74.42      
4 A' 1459 1406 0.49      
5 A' 1193 1149 141.87      
6 A' 944 909 36.87      
7 A' 630 607 40.10      
8 A' 400 385 1.77      
9 A' 347 335 0.90      
10 A" 914 881 67.02      
11 A" 718 692 1.82      
12 A" 474 457 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7623.3 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 7345.8 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
0.33586 0.15385 0.10551

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 0.000 0.486 0.000
C2 -0.986 1.390 0.000
F3 1.349 0.848 0.000
Cl4 -0.203 -1.319 0.000
H5 -0.749 2.453 0.000
H6 -2.030 1.083 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.33781.39661.81642.10522.1156
C21.33782.39732.82001.08951.0873
F31.39662.39732.66502.64213.3866
Cl41.81642.82002.66503.81183.0181
H52.10521.08952.64213.81181.8750
H62.11561.08733.38663.01811.8750

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 119.942 C1 C2 H6 121.124
C2 C1 F3 122.487 C2 C1 Cl4 126.099
F3 C1 Cl4 111.414 H5 C2 H6 118.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability