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: QCISD(T)/SDD

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)/SDD
 hartrees
Energy at 0K-117.344563
Energy at 298.15K-117.350072
HF Energy-117.034867
Nuclear repulsion energy69.169299
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)/SDD
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' 3178 3031        
2 A' 3090 2947        
3 A' 3071 2929        
4 A' 3048 2907        
5 A' 2953 2816        
6 A' 1646 1570        
7 A' 1516 1446        
8 A' 1462 1394        
9 A' 1439 1373        
10 A' 1315 1254        
11 A' 1195 1140        
12 A' 952 908        
13 A' 903 861        
14 A' 413 393        
15 A" 3026 2886        
16 A" 1496 1427        
17 A" 1080 1030        
18 A" 976 930        
19 A" 841 802        
20 A" 561 535        
21 A" 188 179        

Unscaled Zero Point Vibrational Energy (zpe) 17173.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 16378.1 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)/SDD
ABC
1.49454 0.29532 0.25885

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.172 -0.505 0.000
C2 0.000 0.490 0.000
C3 1.326 0.137 0.000
H4 1.643 -0.916 0.000
H5 2.124 0.893 0.000
H6 -0.268 1.561 0.000
H7 -0.801 -1.551 0.000
H8 -1.812 -0.360 0.896
H9 -1.812 -0.360 -0.896

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.53742.57972.84463.58012.25501.10921.11091.1109
C21.53741.37252.16232.16171.10362.19212.19302.1930
C32.57971.37251.10011.09872.13692.71603.30183.3018
H42.84462.16231.10011.87253.12792.52503.61243.6124
H53.58012.16171.09871.87252.48253.81164.22674.2267
H62.25501.10362.13693.12792.48253.15662.62252.6225
H71.10922.19212.71602.52503.81163.15661.80081.8008
H81.11092.19303.30183.61244.22672.62251.80081.7923
H91.11092.19303.30183.61244.22672.62251.80081.7923

picture of Propene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.787 C1 C2 H6 116.303
C2 C1 H7 110.808 C2 C1 H8 110.778
C2 C1 H9 110.778 C2 C3 H4 121.593
C2 C3 H5 121.636 C3 C2 H6 118.910
H4 C3 H5 116.770 H7 C1 H8 108.411
H7 C1 H9 108.411 H8 C1 H9 107.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability