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All results from a given calculation for CH2CHCH3 (Propene)

using model chemistry: QCISD(T)/3-21G*

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)/3-21G*
 hartrees
Energy at 0K-116.741338
Energy at 298.15K-116.746924
HF Energy-116.421187
Nuclear repulsion energy69.904173
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)/3-21G*
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' 3107 2963        
3 A' 3096 2952        
4 A' 3071 2929        
5 A' 3002 2863        
6 A' 1672 1595        
7 A' 1570 1498        
8 A' 1500 1431        
9 A' 1468 1400        
10 A' 1357 1294        
11 A' 1212 1155        
12 A' 992 946        
13 A' 886 845        
14 A' 435 414        
15 A" 3055 2914        
16 A" 1558 1486        
17 A" 1110 1058        
18 A" 1012 965        
19 A" 928 885        
20 A" 578 552        
21 A" 182 173        

Unscaled Zero Point Vibrational Energy (zpe) 17483.8 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 16674.3 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)/3-21G*
ABC
1.51419 0.30279 0.26502

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.154 -0.514 0.000
C2 0.000 0.490 0.000
C3 1.304 0.149 0.000
H4 1.624 -0.896 0.000
H5 2.098 0.898 0.000
H6 -0.285 1.547 0.000
H7 -0.765 -1.544 0.000
H8 -1.788 -0.379 0.891
H9 -1.788 -0.379 -0.891

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.52942.54582.80393.54502.23611.10081.10201.1020
C21.52941.34812.13502.13751.09442.17322.17862.1786
C32.54581.34811.09281.09102.11662.67403.26133.2613
H42.80392.13501.09281.85483.10032.47583.56443.5644
H53.54502.13751.09101.85482.47063.76314.18664.1866
H62.23611.09442.11663.10032.47063.12772.60012.6001
H71.10082.17322.67402.47583.76313.12771.78791.7879
H81.10202.17863.26133.56444.18662.60011.78791.7815
H91.10202.17863.26133.56444.18662.60011.78791.7815

picture of Propene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.319 C1 C2 H6 115.919
C2 C1 H7 110.376 C2 C1 H8 110.732
C2 C1 H9 110.732 C2 C3 H4 121.668
C2 C3 H5 122.053 C3 C2 H6 119.762
H4 C3 H5 116.279 H7 C1 H8 108.523
H7 C1 H9 108.523 H8 C1 H9 107.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability