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

using model chemistry: MP2=FULL/3-21G*

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=FULL/3-21G*
 hartrees
Energy at 0K-78.331334
Energy at 298.15K-78.335221
HF Energy-78.163272
Nuclear repulsion energy36.687559
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=FULL/3-21G*
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' 3205 3039 12.53      
2 A' 3117 2955 21.16      
3 A' 3046 2887 17.76      
4 A' 1589 1507 5.57      
5 A' 1557 1476 0.61      
6 A' 1500 1422 3.70      
7 A' 1063 1008 0.94      
8 A' 1027 974 0.11      
9 A' 451 428 55.75      
10 A" 3314 3141 15.95      
11 A" 3155 2991 17.72      
12 A" 1599 1516 4.67      
13 A" 1268 1202 2.90      
14 A" 865 820 3.34      
15 A" 149 141 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 13452.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 12752.7 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=FULL/3-21G*
ABC
3.43100 0.74243 0.68993

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.706 0.000
C2 -0.013 0.805 0.000
H3 1.010 -1.112 0.000
H4 -0.521 -1.097 0.888
H5 -0.521 -1.097 -0.888
H6 0.094 1.354 -0.927
H7 0.094 1.354 0.927

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.51081.10071.09511.09512.26132.2613
C21.51082.17292.15972.15971.08271.0827
H31.10072.17291.76981.76982.78922.7892
H41.09512.15971.76981.77533.11122.5274
H51.09512.15971.76981.77532.52743.1112
H62.26131.08272.78923.11122.52741.8542
H72.26131.08272.78922.52743.11121.8542

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 120.464 C1 C2 H7 120.464
C2 C1 H3 111.655 C2 C1 H4 110.941
C2 C1 H5 110.941 H3 C1 H4 107.414
H3 C1 H5 107.414 H4 C1 H5 108.305
H6 C2 H7 117.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability