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

using model chemistry: ROHF/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 ROHF/cc-pVDZ
 hartrees
Energy at 0K-78.599948
Energy at 298.15K-78.604029
HF Energy-78.599948
Nuclear repulsion energy36.876898
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 ROHF/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' 3285 2827 18.56      
2 A' 3215 2767 38.67      
3 A' 3148 2710 37.66      
4 A' 1583 1363 2.60      
5 A' 1571 1352 2.83      
6 A' 1507 1297 0.04      
7 A' 1115 960 0.20      
8 A' 1065 917 0.13      
9 A' 547 471 36.28      
10 A" 3387 2916 24.31      
11 A" 3249 2797 31.66      
12 A" 1584 1363 3.99      
13 A" 1291 1111 1.91      
14 A" 857 738 1.13      
15 A" 213 184 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 13808.9 cm-1
Scaled (by 0.8607) Zero Point Vibrational Energy (zpe) 11885.3 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 ROHF/cc-pVDZ
ABC
3.43619 0.75327 0.70110

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 -0.697 0.000
C2 -0.024 0.800 0.000
H3 0.997 -1.101 0.000
H4 -0.528 -1.095 0.884
H5 -0.528 -1.095 -0.884
H6 0.172 1.336 -0.921
H7 0.172 1.336 0.921

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49781.09711.09241.09242.24102.2410
C21.49782.15772.15102.15101.08351.0835
H31.09712.15771.76231.76232.73262.7326
H41.09242.15101.76231.76773.10752.5297
H51.09242.15101.76231.76772.52973.1075
H62.24101.08352.73263.10752.52971.8426
H72.24101.08352.73262.52973.10751.8426

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 119.626 C1 C2 H7 119.626
C2 C1 H3 111.577 C2 C1 H4 111.321
C2 C1 H5 111.321 H3 C1 H4 107.198
H3 C1 H5 107.198 H4 C1 H5 108.011
H6 C2 H7 116.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.067      
2 C -0.144      
3 H 0.039      
4 H 0.038      
5 H 0.038      
6 H 0.048      
7 H 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.245 -0.187 0.000 0.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.057 0.395 0.000
y 0.395 -14.540 0.001
z 0.000 0.001 -13.697
Traceless
 xyz
x -0.939 0.395 0.000
y 0.395 -0.162 0.001
z 0.000 0.001 1.102
Polar
3z2-r22.203
x2-y2-0.518
xy0.395
xz0.000
yz0.001


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> 27.830
(<r2>)1/2 5.275