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)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-116.995184
Energy at 298.15K-116.999290
HF Energy-116.471911
Nuclear repulsion energy64.212141
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)/cc-pVTZ
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' 3250 3168        
2 A' 3136 3057        
3 A' 3057 2980        
4 A' 3043 2966        
5 A' 1684 1641        
6 A' 1506 1469        
7 A' 1402 1366        
8 A' 1279 1247        
9 A' 1125 1097        
10 A' 949 925        
11 A' 835 814        
12 A' 410 400        
13 A" 3100 3022        
14 A" 1506 1468        
15 A" 1074 1047        
16 A" 826 805        
17 A" 622 606        
18 A" 271 264        

Unscaled Zero Point Vibrational Energy (zpe) 14537.6 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 14171.3 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)/cc-pVTZ
ABC
1.90682 0.31776 0.28686

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.449 0.000
C2 1.311 0.330 0.000
C3 -0.981 -0.696 0.000
H4 -0.428 1.455 0.000
H5 2.158 1.000 0.000
H6 -0.460 -1.654 0.000
H7 -1.626 -0.650 0.881
H8 -1.626 -0.650 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8
C11.31631.50721.09392.22712.15232.15082.1508
C21.31632.51082.07141.07952.65973.21893.2189
C31.50722.51082.22103.56711.09001.09281.0928
H41.09392.07142.22102.62603.10922.57702.5770
H52.22711.07953.56712.62603.72774.22054.2205
H62.15232.65971.09003.10923.72771.77261.7726
H72.15083.21891.09282.57704.22051.77261.7612
H82.15083.21891.09282.57704.22051.77261.7612

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 136.512 C1 C3 H6 110.908
C1 C3 H7 110.619 C1 C3 H8 110.619
C2 C1 C3 125.424 C2 C1 H4 118.212
C3 C1 H4 116.364 H6 C3 H7 108.603
H6 C3 H8 108.603 H7 C3 H8 107.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability