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

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-78.907633
Energy at 298.15K-78.911482
HF Energy-78.603653
Nuclear repulsion energy36.588912
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/cc-pVDZ
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' 3185 3047 12.45      
2 A' 3109 2974 24.67      
3 A' 3027 2896 26.01      
4 A' 1492 1427 1.39      
5 A' 1476 1412 3.53      
6 A' 1409 1348 0.15      
7 A' 1086 1039 0.04      
8 A' 991 948 0.18      
9 A' 442 423 43.00      
10 A" 3293 3151 13.15      
11 A" 3152 3015 20.55      
12 A" 1487 1423 3.73      
13 A" 1201 1149 1.90      
14 A" 809 774 1.22      
15 A" 148 141 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 13152.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12583.3 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/cc-pVDZ
ABC
3.37745 0.74514 0.69102

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.701 0.000
C2 -0.014 0.801 0.000
H3 1.019 -1.111 0.000
H4 -0.521 -1.105 0.895
H5 -0.521 -1.105 -0.895
H6 0.093 1.359 -0.937
H7 0.093 1.359 0.937

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.50191.11091.10491.10492.26512.2651
C21.50192.17342.16582.16581.09541.0954
H31.11092.17341.78031.78032.79922.7992
H41.10492.16581.78031.78923.13062.5395
H51.10492.16581.78031.78922.53953.1306
H62.26511.09542.79923.13062.53951.8734
H72.26511.09542.79922.53953.13061.8734

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 120.604 C1 C2 H7 120.604
C2 C1 H3 111.700 C2 C1 H4 111.458
C2 C1 H5 111.458 H3 C1 H4 106.925
H3 C1 H5 106.925 H4 C1 H5 108.130
H6 C2 H7 117.549
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability