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 CHFCHClz ((Z)-1-Chloro-2-fluoroethene)

using model chemistry: QCISD(T)=FULL/aug-cc-pVDZ

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(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-636.514334
Energy at 298.15K-636.516525
HF Energy-635.823477
Nuclear repulsion energy143.503978
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(T)=FULL/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 A' 3251 3153        
2 A' 3227 3130        
3 A' 1692 1641        
4 A' 1334 1294        
5 A' 1226 1189        
6 A' 1048 1017        
7 A' 800 776        
8 A' 647 628        
9 A' 191 185        
10 A" 836 811        
11 A" 736 714        
12 A" 435 422        

Unscaled Zero Point Vibrational Energy (zpe) 7710.3 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 7479.7 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(T)=FULL/aug-cc-pVDZ
ABC
0.53535 0.12096 0.09866

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.880 0.000
C2 1.267 0.426 0.000
Cl3 -1.392 -0.165 0.000
F4 1.569 -0.896 0.000
H5 -0.206 1.953 0.000
H6 2.145 1.078 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.34591.74062.36961.09172.1536
C21.34592.72361.35612.12081.0929
Cl31.74062.72363.04902.42723.7483
F42.36961.35613.04903.35572.0560
H51.09172.12082.42723.35572.5077
H62.15361.09293.74832.05602.5077

picture of (Z)-1-Chloro-2-fluoroethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 122.563 C1 C2 H6 123.698
C2 C1 Cl3 123.368 C2 C1 H5 120.570
Cl3 C1 H5 116.062 F4 C2 H6 113.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability