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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-229.595608
Energy at 298.15K-229.601551
HF Energy-229.595608
Nuclear repulsion energy123.681302
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/6-311G*
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' 3114 3009 24.10      
2 A' 3065 2962 15.85      
3 A' 3048 2945 13.85      
4 A' 1524 1473 7.12      
5 A' 1510 1459 1.20      
6 A' 1433 1385 20.98      
7 A' 1392 1345 10.91      
8 A' 1194 1154 16.01      
9 A' 1141 1102 5.88      
10 A' 1020 986 16.55      
11 A' 846 817 3.87      
12 A' 506 489 10.24      
13 A' 308 298 1.69      
14 A" 3130 3024 45.86      
15 A" 3106 3001 0.15      
16 A" 1502 1452 8.45      
17 A" 1291 1248 0.35      
18 A" 1161 1122 5.11      
19 A" 808 780 1.31      
20 A" 223 215 0.40      
21 A" 81 78 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 15701.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15172.0 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/6-311G*
ABC
1.11943 0.14660 0.13628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.922 0.000
C2 0.000 0.679 0.000
O3 -0.209 -0.767 0.000
O4 -1.490 -1.073 0.000
H5 1.695 1.996 0.000
H6 1.962 0.488 0.886
H7 1.962 0.488 -0.886
H8 -0.496 1.073 -0.889
H9 -0.496 1.073 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51312.39803.58841.09281.09201.09202.18422.1842
C21.51311.46092.29922.14622.16152.16151.09181.0918
O32.39801.46091.31683.35522.65982.65982.06392.0639
O43.58842.29921.31684.42203.89073.89072.52632.5263
H51.09282.14623.35524.42201.76911.76912.53772.5377
H61.09202.16152.65983.89071.76911.77143.08792.5268
H71.09202.16152.65983.89071.76911.77142.52683.0879
H82.18421.09182.06392.52632.53773.08792.52681.7786
H92.18421.09182.06392.52632.53772.52683.08791.7786

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 107.459 C1 C2 H8 112.966
C1 C2 H9 112.966 C2 C1 H5 109.841
C2 C1 H6 111.105 C2 C1 H7 111.105
C2 O3 O4 111.627 O3 C2 H8 107.008
O3 C2 H9 107.008 H5 C1 H6 108.143
H5 C1 H7 108.143 H6 C1 H7 108.404
H8 C2 H9 109.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.646      
2 C -0.187      
3 O -0.127      
4 O -0.154      
5 H 0.221      
6 H 0.227      
7 H 0.227      
8 H 0.220      
9 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.604 2.480 0.000 2.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.121 -1.207 0.000
y -1.207 -25.356 0.000
z 0.000 0.000 -23.301
Traceless
 xyz
x -1.793 -1.207 0.000
y -1.207 -0.645 0.000
z 0.000 0.000 2.437
Polar
3z2-r24.875
x2-y2-0.765
xy-1.207
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.640 0.991 0.000
y 0.991 4.673 0.000
z 0.000 0.000 3.797


<r2> (average value of r2) Å2
<r2> 89.807
(<r2>)1/2 9.477