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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at G3B3
 hartrees
Energy at 0K-79.065690
Energy at 298.15K-79.060732
HF Energy-79.157867
Nuclear repulsion energy36.862802
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 B3LYP/6-31G*
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' 3170 3044 16.50      
2 A' 3059 2937 28.32      
3 A' 2966 2848 31.80      
4 A' 1511 1451 3.51      
5 A' 1493 1433 1.79      
6 A' 1430 1373 0.60      
7 A' 1074 1032 0.07      
8 A' 994 955 0.70      
9 A' 458 439 52.13      
10 A" 3266 3137 20.56      
11 A" 3103 2980 25.23      
12 A" 1515 1455 3.84      
13 A" 1207 1160 2.67      
14 A" 818 785 2.31      
15 A" 121 116 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 13091.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 12571.6 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 B3LYP/6-31G*
ABC
3.44634 0.75552 0.70052

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.694 0.000
C2 -0.011 0.795 0.000
H3 1.013 -1.110 0.000
H4 -0.511 -1.102 0.888
H5 -0.511 -1.102 -0.888
H6 0.072 1.353 -0.927
H7 0.072 1.353 0.927

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.48951.10521.09701.09702.24912.2491
C21.48952.16342.15322.15321.08541.0854
H31.10522.16341.76301.76302.79542.7954
H41.09702.15321.76301.77533.10812.5234
H51.09702.15321.76301.77532.52343.1081
H62.24911.08542.79543.10812.52341.8547
H72.24911.08542.79542.52343.10811.8547

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 120.927 C1 C2 H7 120.927
C2 C1 H3 112.125 C2 C1 H4 111.814
C2 C1 H5 111.814 H3 C1 H4 106.362
H3 C1 H5 106.362 H4 C1 H5 108.027
H6 C2 H7 117.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.452      
2 C -0.299      
3 H 0.156      
4 H 0.154      
5 H 0.154      
6 H 0.143      
7 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.132 -0.217 0.000 0.254
CHELPG 0.104 -0.197 0.000 0.223
AIM        
ESP 0.103 -0.214 0.000 0.237


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 27.671
(<r2>)1/2 5.260