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 CH2CHCH3 (Propene)

using model chemistry: CCSD/CEP-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 CCSD/CEP-31G*
 hartrees
Energy at 0K-20.325750
Energy at 298.15K-20.331294
HF Energy-19.922107
Nuclear repulsion energy39.755193
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3233 3049 38.05      
2 A' 3161 2981 16.69      
3 A' 3141 2962 42.80      
4 A' 3129 2951 12.55      
5 A' 3042 2869 35.83      
6 A' 1720 1622 6.91      
7 A' 1505 1420 12.18      
8 A' 1465 1381 1.63      
9 A' 1424 1343 0.70      
10 A' 1317 1242 0.24      
11 A' 1198 1130 0.37      
12 A' 945 891 4.97      
13 A' 927 874 0.18      
14 A' 417 393 0.69      
15 A" 3106 2929 41.05      
16 A" 1490 1405 8.86      
17 A" 1075 1014 4.06      
18 A" 1000 943 30.47      
19 A" 868 819 54.80      
20 A" 578 545 14.77      
21 A" 193 182 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 17466.8 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 16472.9 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 CCSD/CEP-31G*
ABC
1.48280 0.29957 0.26170

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.166 -0.491 0.000
C2 0.000 0.494 0.000
C3 1.320 0.118 0.000
H4 1.619 -0.940 0.000
H5 2.123 0.871 0.000
H6 -0.250 1.566 0.000
H7 -0.802 -1.537 0.000
H8 -1.807 -0.342 0.895
H9 -1.807 -0.342 -0.895

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.52662.56002.82103.56052.25231.10731.11021.1102
C21.52661.37262.16262.15661.10142.18352.18242.1824
C32.56001.37261.09961.10092.13642.69153.28463.2846
H42.82102.16261.09961.88013.12682.49353.59053.5905
H53.56052.15661.10091.88012.47353.78914.20914.2091
H62.25231.10142.13643.12682.47353.15212.62002.6200
H71.10732.18352.69152.49353.78913.15211.79911.7991
H81.11022.18243.28463.59054.20912.62001.79911.7891
H91.11022.18243.28463.59054.20912.62001.79911.7891

picture of Propene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.928 C1 C2 H6 117.046
C2 C1 H7 110.992 C2 C1 H8 110.729
C2 C1 H9 110.729 C2 C3 H4 121.645
C2 C3 H5 120.960 C3 C2 H6 119.026
H4 C3 H5 117.395 H7 C1 H8 108.452
H7 C1 H9 108.452 H8 C1 H9 107.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability