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

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-78.950894
Energy at 298.15K-78.954746
HF Energy-78.626141
Nuclear repulsion energy37.063645
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 MP2/6-311+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' 3211 3029 11.38      
2 A' 3119 2942 14.77      
3 A' 3035 2863 18.64      
4 A' 1510 1424 2.71      
5 A' 1494 1409 3.56      
6 A' 1418 1337 1.51      
7 A' 1089 1027 0.04      
8 A' 991 935 0.60      
9 A' 468 442 56.93      
10 A" 3323 3135 7.33      
11 A" 3165 2986 13.99      
12 A" 1509 1423 5.85      
13 A" 1209 1141 1.91      
14 A" 819 773 1.53      
15 A" 131 124 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 13244.8 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 12495.1 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 MP2/6-311+G(3df,2p)
ABC
3.48687 0.76216 0.70691

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.693 0.000
C2 -0.012 0.793 0.000
H3 1.007 -1.096 0.000
H4 -0.508 -1.095 0.882
H5 -0.508 -1.095 -0.882
H6 0.073 1.344 -0.922
H7 0.073 1.344 0.922

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.48591.09551.08871.08872.23792.2379
C21.48592.14622.14162.14161.07771.0777
H31.09552.14621.75281.75282.77092.7709
H41.08872.14161.75281.76413.08882.5075
H51.08872.14161.75281.76412.50753.0888
H62.23791.07772.77093.08882.50751.8439
H72.23791.07772.77092.50753.08881.8439

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 120.781 C1 C2 H7 120.781
C2 C1 H3 111.594 C2 C1 H4 111.639
C2 C1 H5 111.639 H3 C1 H4 106.736
H3 C1 H5 106.736 H4 C1 H5 108.227
H6 C2 H7 117.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability