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 CH3CHCH (1-propenyl radical)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-116.620029
Energy at 298.15K-116.624125
HF Energy-116.397545
Nuclear repulsion energy63.535433
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 MP2/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' 3278 3164 1.80      
2 A' 3150 3041 27.76      
3 A' 3101 2993 14.97      
4 A' 3027 2922 33.65      
5 A' 1710 1650 3.43      
6 A' 1536 1483 11.39      
7 A' 1460 1410 5.03      
8 A' 1329 1282 3.81      
9 A' 1152 1112 7.46      
10 A' 954 921 1.32      
11 A' 841 812 13.62      
12 A' 425 410 8.58      
13 A" 3118 3010 33.96      
14 A" 1526 1473 11.19      
15 A" 1138 1098 4.26      
16 A" 971 937 7.25      
17 A" 689 665 91.57      
18 A" 204 197 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14804.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 14290.6 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 MP2/SDD
ABC
1.87039 0.31030 0.28038

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.456 0.000
C2 1.317 0.357 0.000
C3 -0.983 -0.723 0.000
H4 -0.461 1.458 0.000
H5 2.161 1.045 0.000
H6 -0.442 -1.683 0.000
H7 -1.632 -0.682 0.893
H8 -1.632 -0.682 -0.893

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8
C11.32091.53481.10322.23992.18382.18072.1807
C21.32092.54102.09171.08882.69373.25193.2519
C31.53482.54102.24253.60691.10171.10471.1047
H41.10322.09172.24252.65453.14082.59762.5976
H52.23991.08883.60692.65453.77074.26234.2623
H62.18382.69371.10173.14083.77071.79301.7930
H72.18073.25191.10472.59764.26231.79301.7860
H82.18073.25191.10472.59764.26231.79301.7860

picture of 1-propenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 136.506 C1 C3 H6 110.784
C1 C3 H7 110.353 C1 C3 H8 110.353
C2 C1 C3 125.531 C2 C1 H4 119.002
C3 C1 H4 115.466 H6 C3 H7 108.705
H6 C3 H8 108.705 H7 C3 H8 107.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability