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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-78.970650
Energy at 298.15K-78.965766
HF Energy-78.596460
Nuclear repulsion energy36.910344
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3296 3296 18.81      
2 A' 3218 3218 41.15      
3 A' 3148 3148 38.67      
4 A' 1620 1620 3.45      
5 A' 1596 1596 1.58      
6 A' 1537 1537 0.01      
7 A' 1107 1107 0.46      
8 A' 1075 1075 0.06      
9 A' 464 464 43.43      
10 A" 3396 3396 27.92      
11 A" 3254 3254 34.84      
12 A" 1626 1626 2.96      
13 A" 1299 1299 2.11      
14 A" 861 861 0.84      
15 A" 173 173 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 13835.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13835.8 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 CBS-Q
ABC
3.43477 0.75168 0.69785

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.700 0.000
C2 -0.017 0.801 0.000
H3 0.998 -1.105 0.000
H4 -0.520 -1.096 0.880
H5 -0.520 -1.096 -0.880
H6 0.124 1.345 -0.920
H7 0.124 1.345 0.920

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.50061.09321.08811.08812.24702.2470
C21.50062.15922.15042.15041.07811.0781
H31.09322.15921.75491.75492.75902.7590
H41.08812.15041.75491.76003.10062.5252
H51.08812.15041.75491.76002.52523.1006
H62.24701.07812.75903.10062.52521.8391
H72.24701.07812.75902.52523.10061.8391

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 120.346 C1 C2 H7 120.346
C2 C1 H3 111.734 C2 C1 H4 111.340
C2 C1 H5 111.340 H3 C1 H4 107.127
H3 C1 H5 107.127 H4 C1 H5 107.944
H6 C2 H7 117.062
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability