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)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-117.508372
Energy at 298.15K 
HF Energy-117.069836
Nuclear repulsion energy70.340896
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)/6-31G*
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' 3237 3105        
2 A' 3157 3028        
3 A' 3147 3018        
4 A' 3125 2998        
5 A' 3040 2916        
6 A' 1718 1648        
7 A' 1539 1476        
8 A' 1483 1423        
9 A' 1448 1389        
10 A' 1340 1285        
11 A' 1212 1163        
12 A' 963 924        
13 A' 942 903        
14 A' 426 408        
15 A" 3103 2976        
16 A" 1524 1462        
17 A" 1088 1044        
18 A" 1009 968        
19 A" 904 867        
20 A" 580 556        
21 A" 193 185        

Unscaled Zero Point Vibrational Energy (zpe) 17587.4 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 16871.6 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)/6-31G*
ABC
1.53546 0.30740 0.26902

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.146 -0.495 0.000
C2 0.000 0.482 0.000
C3 1.298 0.135 0.000
H4 1.611 -0.911 0.000
H5 2.092 0.881 0.000
H6 -0.267 1.542 0.000
H7 -0.780 -1.530 0.000
H8 -1.784 -0.355 0.885
H9 -1.784 -0.355 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50592.52442.78823.51842.21921.09791.09981.0998
C21.50591.34392.12922.12971.09392.15802.16042.1604
C32.52441.34391.09121.08942.10502.66353.24443.2444
H42.78822.12921.09121.85523.08922.47043.55233.5523
H53.51842.12971.08941.85522.44963.75044.16384.1638
H62.21921.09392.10503.08922.44963.11542.58592.5859
H71.09792.15802.66352.47043.75043.11541.78081.7808
H81.09982.16043.24443.55234.16382.58591.78081.7694
H91.09982.16043.24443.55234.16382.58591.78081.7694

picture of Propene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.609 C1 C2 H6 116.317
C2 C1 H7 110.980 C2 C1 H8 111.053
C2 C1 H9 111.053 C2 C3 H4 121.599
C2 C3 H5 121.800 C3 C2 H6 119.074
H4 C3 H5 116.601 H7 C1 H8 108.250
H7 C1 H9 108.250 H8 C1 H9 107.106
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability