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

using model chemistry: QCISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-78.984384
Energy at 298.15K-78.988224
HF Energy-78.626058
Nuclear repulsion energy36.951425
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 QCISD/6-311+G(3df,2p)
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' 3168 3021 12.61      
2 A' 3079 2937 20.39      
3 A' 2999 2860 23.11      
4 A' 1508 1438 3.11      
5 A' 1491 1422 2.44      
6 A' 1425 1359 0.84      
7 A' 1077 1027 0.01      
8 A' 997 951 0.51      
9 A' 466 444 54.10      
10 A" 3272 3120 11.77      
11 A" 3123 2978 19.45      
12 A" 1509 1439 5.08      
13 A" 1209 1153 1.76      
14 A" 816 778 1.06      
15 A" 127 121 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 13132.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 12524.2 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 QCISD/6-311+G(3df,2p)
ABC
3.46860 0.75708 0.70224

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.696 0.000
C2 -0.011 0.795 0.000
H3 1.010 -1.100 0.000
H4 -0.509 -1.097 0.884
H5 -0.509 -1.097 -0.884
H6 0.071 1.349 -0.925
H7 0.071 1.349 0.925

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49131.09811.09111.09112.24572.2457
C21.49132.15302.14732.14731.08081.0808
H31.09812.15301.75751.75752.78112.7811
H41.09112.14731.75751.76853.09682.5139
H51.09112.14731.75751.76852.51393.0968
H62.24571.08082.78113.09682.51391.8494
H72.24571.08082.78112.51393.09681.8494

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 120.804 C1 C2 H7 120.804
C2 C1 H3 111.599 C2 C1 H4 111.564
C2 C1 H5 111.564 H3 C1 H4 106.794
H3 C1 H5 106.794 H4 C1 H5 108.269
H6 C2 H7 117.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability