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 CH2CHF (Ethene, fluoro-)

using model chemistry: CCSD=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 CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-177.420731
Energy at 298.15K 
HF Energy-176.906503
Nuclear repulsion energy66.764745
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 CCSD=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' 3303 3303 2.56      
2 A' 3253 3253 4.36      
3 A' 3195 3195 0.36      
4 A' 1720 1720 91.60      
5 A' 1415 1415 5.50      
6 A' 1329 1329 0.96      
7 A' 1160 1160 88.98      
8 A' 932 932 45.47      
9 A' 479 479 4.54      
10 A" 944 944 49.67      
11 A" 887 887 27.04      
12 A" 717 717 3.13      

Unscaled Zero Point Vibrational Energy (zpe) 9666.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9666.2 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 CCSD=FULL/aug-cc-pVDZ
ABC
2.11825 0.34704 0.29819

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
C2 1.199 -0.150 0.000
F3 -1.155 -0.279 0.000
H4 -0.190 1.518 0.000
H5 1.300 -1.237 0.000
H6 2.095 0.472 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6
C11.33781.36241.09172.12432.0949
C21.33782.35782.17101.09141.0908
F31.36242.35782.03992.63533.3357
H41.09172.17102.03993.13222.5128
H52.12431.09142.63533.13221.8852
H62.09491.09083.33572.51281.8852

picture of Ethene, fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.631 C1 C2 H6 118.864
C2 C1 F3 121.656 C2 C1 H4 126.362
F3 C1 H4 111.982 H5 C2 H6 119.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability