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

using model chemistry: MP4=FULL/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 MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-78.919201
Energy at 298.15K-78.923070
HF Energy-78.603663
Nuclear repulsion energy36.601089
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 MP4=FULL/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' 3181 3070        
2 A' 3100 2991        
3 A' 3014 2909        
4 A' 1486 1435        
5 A' 1470 1419        
6 A' 1398 1349        
7 A' 1084 1046        
8 A' 983 949        
9 A' 450 434        
10 A" 3290 3175        
11 A" 3145 3036        
12 A" 1480 1429        
13 A" 1195 1153        
14 A" 804 776        
15 A" 159 154        

Unscaled Zero Point Vibrational Energy (zpe) 13119.3 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 12661.4 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 MP4=FULL/cc-pVDZ
ABC
3.37696 0.74602 0.69183

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.700 0.000
C2 -0.015 0.801 0.000
H3 1.018 -1.111 0.000
H4 -0.521 -1.105 0.895
H5 -0.521 -1.105 -0.895
H6 0.100 1.358 -0.936
H7 0.100 1.358 0.936

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.50071.11151.10501.10502.26342.2634
C21.50072.17322.16532.16531.09531.0953
H31.11152.17321.77991.77992.79552.7955
H41.10502.16531.77991.78983.13072.5397
H51.10502.16531.77991.78982.53973.1307
H62.26341.09532.79553.13072.53971.8724
H72.26341.09532.79552.53973.13071.8724

picture of Ethyl radical state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability