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 C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: MP4=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-636.863640
Energy at 298.15K-636.865928
HF Energy-635.877341
Nuclear repulsion energy149.534117
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 MP4=FULL/6-311+G(3df,2p)
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' 3308 3308        
2 A' 3196 3196        
3 A' 1690 1690        
4 A' 1402 1402        
5 A' 1201 1201        
6 A' 956 956        
7 A' 709 709        
8 A' 435 435        
9 A' 372 372        
10 A" 845 845        
11 A" 723 723        
12 A" 526 526        

Unscaled Zero Point Vibrational Energy (zpe) 7681.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7681.9 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 MP4=FULL/6-311+G(3df,2p)
ABC
0.35621 0.17003 0.11509

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.446 0.000
C2 -1.004 1.316 0.000
F3 1.276 0.830 0.000
Cl4 -0.156 -1.258 0.000
H5 -0.790 2.374 0.000
H6 -2.023 0.967 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.32801.33231.71132.08362.0884
C21.32802.33062.71001.07971.0772
F31.33232.33062.53172.57903.3012
Cl41.71132.71002.53173.68722.9040
H52.08361.07972.57903.68721.8712
H62.08841.07723.30122.90401.8712

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 119.496 C1 C2 H6 120.157
C2 C1 F3 122.341 C2 C1 Cl4 125.692
F3 C1 Cl4 111.967 H5 C2 H6 120.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability