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)/6-31+G**

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)/6-31+G**
 hartrees
Energy at 0K-117.565552
Energy at 298.15K-117.571126
HF Energy-117.084570
Nuclear repulsion energy70.445895
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)/6-31+G**
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' 3284 3084        
2 A' 3197 3002        
3 A' 3187 2993        
4 A' 3164 2971        
5 A' 3072 2885        
6 A' 1711 1606        
7 A' 1534 1441        
8 A' 1484 1393        
9 A' 1445 1356        
10 A' 1337 1256        
11 A' 1210 1136        
12 A' 960 902        
13 A' 939 882        
14 A' 423 397        
15 A" 3141 2949        
16 A" 1513 1421        
17 A" 1079 1013        
18 A" 1004 943        
19 A" 892 837        
20 A" 572 537        
21 A" 189 177        

Unscaled Zero Point Vibrational Energy (zpe) 17667.9 cm-1
Scaled (by 0.939) Zero Point Vibrational Energy (zpe) 16590.1 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)/6-31+G**
ABC
1.54148 0.30769 0.26930

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.147 -0.493 0.000
C2 0.000 0.482 0.000
C3 1.300 0.131 0.000
H4 1.605 -0.911 0.000
H5 2.087 0.875 0.000
H6 -0.260 1.539 0.000
H7 -0.785 -1.523 0.000
H8 -1.781 -0.350 0.881
H9 -1.781 -0.350 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50572.52562.78403.51232.21691.09221.09401.0940
C21.50571.34632.12482.12411.08812.15322.15392.1539
C32.52561.34631.08541.08352.10082.66133.23993.2399
H42.78402.12481.08541.84983.07822.46713.54293.5429
H53.51232.12411.08351.84982.43913.74194.15214.1521
H62.21691.08812.10083.07822.43913.10642.58012.5801
H71.09222.15322.66132.46713.74193.10641.77281.7728
H81.09402.15393.23993.54294.15212.58011.77281.7614
H91.09402.15393.23993.54294.15212.58011.77281.7614

picture of Propene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.546 C1 C2 H6 116.534
C2 C1 H7 110.957 C2 C1 H8 110.903
C2 C1 H9 110.903 C2 C3 H4 121.436
C2 C3 H5 121.519 C3 C2 H6 118.921
H4 C3 H5 117.045 H7 C1 H8 108.362
H7 C1 H9 108.362 H8 C1 H9 107.223
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability