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

using model chemistry: CCD/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 CCD/TZVP
 hartrees
Energy at 0K-78.940505
Energy at 298.15K-78.944420
HF Energy-78.626051
Nuclear repulsion energy36.948212
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 CCD/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' 3199 3033 14.79      
2 A' 3107 2946 25.18      
3 A' 3030 2872 26.68      
4 A' 1520 1441 1.12      
5 A' 1498 1420 4.75      
6 A' 1443 1368 0.44      
7 A' 1079 1023 0.00      
8 A' 1013 960 0.60      
9 A' 478 454 57.92      
10 A" 3304 3133 15.66      
11 A" 3149 2985 23.83      
12 A" 1518 1439 4.45      
13 A" 1228 1164 1.44      
14 A" 827 784 0.82      
15 A" 159 151 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 13276.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 12586.2 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 CCD/TZVP
ABC
3.46162 0.75694 0.70260

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.696 0.000
C2 -0.013 0.796 0.000
H3 1.007 -1.101 0.000
H4 -0.515 -1.094 0.884
H5 -0.515 -1.094 -0.884
H6 0.092 1.346 -0.924
H7 0.092 1.346 0.924

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49221.09771.09151.09152.24402.2440
C21.49222.15422.14592.14591.08051.0805
H31.09772.15421.76011.76012.77142.7714
H41.09152.14591.76011.76783.09692.5146
H51.09152.14591.76011.76782.51463.0969
H62.24401.08052.77143.09692.51461.8483
H72.24401.08052.77142.51463.09691.8483

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 120.599 C1 C2 H7 120.599
C2 C1 H3 111.656 C2 C1 H4 111.370
C2 C1 H5 111.370 H3 C1 H4 107.027
H3 C1 H5 107.027 H4 C1 H5 108.162
H6 C2 H7 117.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability