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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-78.885759
Energy at 298.15K-78.889607
HF Energy-78.606768
Nuclear repulsion energy36.703889
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/aug-cc-pVDZ
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' 3206 3075 13.65      
2 A' 3113 2985 18.23      
3 A' 3025 2901 22.73      
4 A' 1493 1432 0.86      
5 A' 1466 1406 4.93      
6 A' 1387 1330 0.60      
7 A' 1089 1044 0.02      
8 A' 974 934 0.59      
9 A' 467 448 54.33      
10 A" 3321 3185 10.69      
11 A" 3160 3031 17.73      
12 A" 1476 1415 4.82      
13 A" 1194 1145 1.81      
14 A" 808 775 1.20      
15 A" 135 129 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 13156.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 12617.1 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/aug-cc-pVDZ
ABC
3.40593 0.74919 0.69463

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.699 0.000
C2 -0.012 0.799 0.000
H3 1.018 -1.107 0.000
H4 -0.515 -1.103 0.892
H5 -0.515 -1.103 -0.892
H6 0.077 1.357 -0.933
H7 0.077 1.357 0.933

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49791.10781.10121.10122.25902.2590
C21.49792.16632.16042.16041.09031.0903
H31.10782.16631.77371.77372.79712.7971
H41.10122.16041.77371.78473.11952.5302
H51.10122.16041.77371.78472.53023.1195
H62.25901.09032.79713.11952.53021.8653
H72.25901.09032.79712.53023.11951.8653

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 120.761 C1 C2 H7 120.761
C2 C1 H3 111.603 C2 C1 H4 111.532
C2 C1 H5 111.532 H3 C1 H4 106.827
H3 C1 H5 106.827 H4 C1 H5 108.268
H6 C2 H7 117.613
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability