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

using model chemistry: MP3=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-78.352336
Energy at 298.15K-78.356207
HF Energy-78.163133
Nuclear repulsion energy36.627239
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 MP3=FULL/3-21G*
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' 3182 3182 12.76      
2 A' 3095 3095 22.89      
3 A' 3028 3028 20.07      
4 A' 1580 1580 5.55      
5 A' 1545 1545 0.54      
6 A' 1495 1495 3.52      
7 A' 1058 1058 0.83      
8 A' 1021 1021 0.04      
9 A' 449 449 54.87      
10 A" 3286 3286 17.41      
11 A" 3130 3130 19.42      
12 A" 1590 1590 4.69      
13 A" 1259 1259 2.89      
14 A" 858 858 3.06      
15 A" 143 143 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 13359.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13359.3 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 MP3=FULL/3-21G*
ABC
3.42026 0.73987 0.68755

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.707 0.000
C2 -0.013 0.806 0.000
H3 1.012 -1.113 0.000
H4 -0.522 -1.098 0.889
H5 -0.522 -1.098 -0.889
H6 0.091 1.357 -0.929
H7 0.091 1.357 0.929

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.51361.10201.09661.09662.26572.2657
C21.51362.17582.16272.16271.08461.0846
H31.10202.17581.77281.77282.79482.7948
H41.09662.16271.77281.77773.11572.5309
H51.09662.16271.77281.77772.53093.1157
H62.26571.08462.79483.11572.53091.8576
H72.26571.08462.79482.53093.11571.8576

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 120.496 C1 C2 H7 120.496
C2 C1 H3 111.617 C2 C1 H4 110.897
C2 C1 H5 110.897 H3 C1 H4 107.482
H3 C1 H5 107.482 H4 C1 H5 108.304
H6 C2 H7 117.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability