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All results from a given calculation for C2H5 (Ethyl radical)

using model chemistry: CCSD(T)=FULL/TZVP

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)=FULL/TZVP
 hartrees
Energy at 0K-78.987136
Energy at 298.15K-78.991033
HF Energy-78.625972
Nuclear repulsion energy36.912539
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)=FULL/TZVP
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' 3168 3029        
2 A' 3075 2940        
3 A' 2992 2860        
4 A' 1505 1439        
5 A' 1482 1416        
6 A' 1425 1363        
7 A' 1068 1021        
8 A' 1001 957        
9 A' 476 455        
10 A" 3273 3129        
11 A" 3119 2982        
12 A" 1502 1436        
13 A" 1215 1162        
14 A" 818 782        
15 A" 156 149        

Unscaled Zero Point Vibrational Energy (zpe) 13137.2 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 12559.2 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)=FULL/TZVP
ABC
3.45156 0.75604 0.70152

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.697 0.000
C2 -0.013 0.796 0.000
H3 1.009 -1.103 0.000
H4 -0.515 -1.095 0.886
H5 -0.515 -1.095 -0.886
H6 0.089 1.347 -0.926
H7 0.089 1.347 0.926

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49291.09981.09291.09292.24582.2458
C21.49292.15692.14752.14751.08201.0820
H31.09982.15691.76221.76222.77612.7761
H41.09292.14751.76221.77123.09952.5154
H51.09292.14751.76221.77122.51543.0995
H62.24581.08202.77613.09952.51541.8516
H72.24581.08202.77612.51543.09951.8516

picture of Ethyl radical state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability