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

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-77.752780
Energy at 298.15K-77.756755
HF Energy-77.661804
Nuclear repulsion energy36.342859
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=FULL/STO-3G
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' 3516 3126 2.74      
2 A' 3461 3077 2.50      
3 A' 3357 2984 2.14      
4 A' 1727 1535 1.62      
5 A' 1665 1480 5.88      
6 A' 1615 1435 1.82      
7 A' 1164 1035 0.09      
8 A' 1130 1005 0.25      
9 A' 589 523 10.26      
10 A" 3629 3226 2.95      
11 A" 3552 3158 1.76      
12 A" 1733 1540 1.13      
13 A" 1345 1195 3.34      
14 A" 894 794 0.62      
15 A" 201 179 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 14789.0 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 13146.0 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=FULL/STO-3G
ABC
3.33457 0.72893 0.67992

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.030 -0.711 0.000
C2 -0.030 0.817 0.000
H3 1.001 -1.116 0.000
H4 -0.542 -1.105 0.895
H5 -0.542 -1.105 -0.895
H6 0.218 1.342 -0.931
H7 0.218 1.342 0.931

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.52811.10761.10361.10362.26792.2679
C21.52812.19082.18132.18131.09741.0974
H31.10762.19081.78371.78372.74262.7426
H41.10362.18131.78371.78903.14642.5627
H51.10362.18131.78371.78902.56273.1464
H62.26791.09742.74263.14642.56271.8628
H72.26791.09742.74262.56273.14641.8628

picture of Ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 118.569 C1 C2 H7 118.569
C2 C1 H3 111.448 C2 C1 H4 110.928
C2 C1 H5 110.928 H3 C1 H4 107.544
H3 C1 H5 107.544 H4 C1 H5 108.293
H6 C2 H7 116.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability