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

using model chemistry: MP2=FULL/6-31G

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/6-31G
 hartrees
Energy at 0K-78.735272
Energy at 298.15K-78.739181
HF Energy-78.568031
Nuclear repulsion energy36.643261
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/6-31G
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' 3201 3041 16.22      
2 A' 3100 2945 30.98      
3 A' 3023 2872 26.11      
4 A' 1558 1480 4.88      
5 A' 1546 1469 1.44      
6 A' 1493 1419 2.34      
7 A' 1084 1030 0.05      
8 A' 1050 998 0.44      
9 A' 480 456 56.49      
10 A" 3312 3147 23.12      
11 A" 3142 2985 26.31      
12 A" 1570 1492 4.69      
13 A" 1263 1200 2.29      
14 A" 856 813 2.55      
15 A" 147 139 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 13411.4 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 12742.2 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 MP2=FULL/6-31G
ABC
3.42342 0.74207 0.68931

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.704 0.000
C2 -0.012 0.804 0.000
H3 1.012 -1.119 0.000
H4 -0.521 -1.101 0.889
H5 -0.521 -1.101 -0.889
H6 0.084 1.360 -0.929
H7 0.084 1.360 0.929

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.50781.10471.09881.09882.26492.2649
C21.50782.17832.16322.16321.08651.0865
H31.10472.17831.77201.77202.80492.8049
H41.09882.16321.77201.77793.11872.5345
H51.09882.16321.77201.77792.53453.1187
H62.26491.08652.80493.11872.53451.8574
H72.26491.08652.80492.53453.11871.8574

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 120.767 C1 C2 H7 120.767
C2 C1 H3 112.065 C2 C1 H4 111.209
C2 C1 H5 111.209 H3 C1 H4 107.063
H3 C1 H5 107.063 H4 C1 H5 108.001
H6 C2 H7 117.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability