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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-229.272255
Energy at 298.15K-229.278063
HF Energy-229.272255
Nuclear repulsion energy122.777059
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 PBEPBE/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' 3082 3038 12.82      
2 A' 3005 2962 16.20      
3 A' 3003 2960 7.45      
4 A' 1485 1464 6.02      
5 A' 1466 1445 0.64      
6 A' 1390 1370 16.98      
7 A' 1335 1316 15.00      
8 A' 1160 1144 7.82      
9 A' 1109 1093 2.03      
10 A' 996 982 11.51      
11 A' 802 791 0.56      
12 A' 489 482 9.30      
13 A' 293 289 1.22      
14 A" 3089 3045 24.37      
15 A" 3056 3013 7.55      
16 A" 1467 1446 7.51      
17 A" 1239 1221 0.01      
18 A" 1111 1095 4.29      
19 A" 781 770 2.33      
20 A" 212 209 0.25      
21 A" 72 71 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 15320.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 15101.3 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 PBEPBE/6-31G*
ABC
1.09768 0.14494 0.13466

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.496 0.934 0.000
C2 0.000 0.682 0.000
O3 -0.202 -0.778 0.000
O4 -1.498 -1.080 0.000
H5 1.690 2.019 0.000
H6 1.971 0.500 0.895
H7 1.971 0.500 -0.895
H8 -0.505 1.076 -0.898
H9 -0.505 1.076 0.898

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51712.41153.60821.10261.10221.10222.19822.1982
C21.51711.47422.31282.15512.17242.17241.10301.1030
O32.41151.47421.33013.37732.67532.67532.08232.0823
O43.60822.31281.33014.44623.91533.91532.53782.5378
H51.10262.15513.37734.44621.78581.78582.55252.5525
H61.10222.17242.67533.91531.78581.78933.11112.5429
H71.10222.17242.67533.91531.78581.78932.54293.1111
H82.19821.10302.08232.53782.55253.11112.54291.7952
H92.19821.10302.08232.53782.55252.54293.11111.7952

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.439 C1 C2 H8 113.118
C1 C2 H9 113.118 C2 C1 H5 109.683
C2 C1 H6 111.085 C2 C1 H7 111.085
C2 O3 O4 111.014 O3 C2 H8 106.920
O3 C2 H9 106.920 H5 C1 H6 108.182
H5 C1 H7 108.182 H6 C1 H7 108.529
H8 C2 H9 108.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.518      
2 C -0.076      
3 O -0.138      
4 O -0.179      
5 H 0.179      
6 H 0.186      
7 H 0.186      
8 H 0.181      
9 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.668 2.408 0.000 2.930
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.412 -1.197 0.000
y -1.197 -24.876 0.000
z 0.000 0.000 -23.001
Traceless
 xyz
x -1.474 -1.197 0.000
y -1.197 -0.669 0.000
z 0.000 0.000 2.143
Polar
3z2-r24.286
x2-y2-0.536
xy-1.197
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.490 1.047 0.000
y 1.047 4.669 0.000
z 0.000 0.000 3.734


<r2> (average value of r2) Å2
<r2> 90.407
(<r2>)1/2 9.508