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: CCSD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-116.897040
Energy at 298.15K-116.900950
HF Energy-116.442939
Nuclear repulsion energy63.495004
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 CCSD(T)/aug-cc-pVDZ
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' 3227 3106        
2 A' 3121 3004        
3 A' 3052 2937        
4 A' 3018 2905        
5 A' 1663 1601        
6 A' 1463 1408        
7 A' 1388 1336        
8 A' 1257 1210        
9 A' 1114 1072        
10 A' 926 892        
11 A' 814 784        
12 A' 401 386        
13 A" 3086 2970        
14 A" 1460 1405        
15 A" 1043 1004        
16 A" 775 746        
17 A" 607 584        
18 A" 173 166        

Unscaled Zero Point Vibrational Energy (zpe) 14293.4 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 13757.4 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 CCSD(T)/aug-cc-pVDZ
ABC
1.86000 0.31128 0.28091

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.452 0.000
C2 1.329 0.322 0.000
C3 -0.995 -0.695 0.000
H4 -0.422 1.476 0.000
H5 2.185 1.004 0.000
H6 -0.473 -1.667 0.000
H7 -1.647 -0.643 0.892
H8 -1.647 -0.643 -0.892

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8
C11.33541.51891.10722.25412.17132.16942.1694
C21.33542.53732.09681.09452.68433.25313.2531
C31.51892.53732.24553.60611.10301.10611.1061
H41.10722.09682.24552.64983.14312.60452.6045
H52.25411.09453.60612.64983.76864.26534.2653
H62.17132.68431.10303.14313.76861.79521.7952
H72.16943.25311.10612.60454.26531.79521.7844
H82.16943.25311.10612.60454.26531.79521.7844

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 135.905 C1 C3 H6 110.819
C1 C3 H7 110.481 C1 C3 H8 110.481
C2 C1 C3 125.357 C2 C1 H4 117.982
C3 C1 H4 116.661 H6 C3 H7 108.715
H6 C3 H8 108.715 H7 C3 H8 107.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability