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: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-116.873806
Energy at 298.15K-116.877934
HF Energy-116.442245
Nuclear repulsion energy64.817023
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 MP2/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3347 3161 1.71      
2 A' 3226 3047 7.71      
3 A' 3142 2968 7.39      
4 A' 3109 2937 15.79      
5 A' 1959 1850 4.24      
6 A' 1519 1435 7.75      
7 A' 1427 1347 2.03      
8 A' 1298 1226 1.71      
9 A' 1143 1080 7.20      
10 A' 960 907 4.50      
11 A' 832 786 16.42      
12 A' 412 390 8.61      
13 A" 3189 3012 10.32      
14 A" 1517 1433 6.55      
15 A" 1118 1056 1.69      
16 A" 977 923 9.02      
17 A" 687 649 51.15      
18 A" 230 217 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15046.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 14211.1 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 MP2/6-31G(2df,p)
ABC
1.95285 0.32346 0.29249

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
C2 1.281 0.364 0.000
C3 -0.955 -0.716 0.000
H4 -0.454 1.437 0.000
H5 2.120 1.040 0.000
H6 -0.419 -1.663 0.000
H7 -1.602 -0.680 0.879
H8 -1.602 -0.680 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8
C11.28381.50241.09282.20202.14782.14462.1446
C21.28382.48392.04071.07662.64593.18983.1898
C31.50242.48392.21083.54101.08851.09181.0918
H41.09282.04072.21082.60463.10062.56302.5630
H52.20201.07663.54102.60463.70804.19264.1926
H62.14782.64591.08853.10063.70801.77221.7722
H72.14463.18981.09182.56304.19261.77221.7579
H82.14463.18981.09182.56304.19261.77221.7579

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 137.599 C1 C3 H6 110.981
C1 C3 H7 110.519 C1 C3 H8 110.519
C2 C1 C3 125.947 C2 C1 H4 118.106
C3 C1 H4 115.946 H6 C3 H7 108.748
H6 C3 H8 108.748 H7 C3 H8 107.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability