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

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-226.552535
Energy at 298.15K-226.558172
HF Energy-226.552535
Nuclear repulsion energy119.909619
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/STO-3G
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' 3484 3109 0.18      
2 A' 3318 2961 0.36      
3 A' 3293 2939 2.01      
4 A' 1680 1499 3.81      
5 A' 1639 1463 0.89      
6 A' 1564 1396 1.30      
7 A' 1450 1294 15.44      
8 A' 1298 1158 16.38      
9 A' 1209 1079 2.26      
10 A' 1087 970 1.51      
11 A' 926 826 2.70      
12 A' 483 431 2.23      
13 A' 288 257 0.31      
14 A" 3491 3115 0.46      
15 A" 3407 3041 3.72      
16 A" 1669 1489 3.74      
17 A" 1348 1203 0.14      
18 A" 1168 1042 5.07      
19 A" 851 760 1.93      
20 A" 191 170 0.21      
21 A" 57 51 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 16949.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 15125.8 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/STO-3G
ABC
1.03927 0.13859 0.12834

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.527 0.967 0.000
C2 0.000 0.690 0.000
O3 -0.191 -0.821 0.000
O4 -1.545 -1.090 0.000
H5 1.709 2.053 0.000
H6 1.995 0.530 0.895
H7 1.995 0.530 -0.895
H8 -0.488 1.115 -0.903
H9 -0.488 1.115 0.903

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.55142.47903.69591.10111.10051.10052.21212.2121
C21.55141.52302.35642.18562.19252.19251.11041.1104
O32.47901.52301.37993.44482.72102.72102.15672.1567
O43.69592.35641.37994.52313.99403.99402.60632.6063
H51.10112.18563.44484.52311.78941.78942.55312.5531
H61.10052.19252.72103.99401.78941.78943.12052.5510
H71.10052.19252.72103.99401.78941.78942.55103.1205
H82.21211.11042.15672.60632.55313.12052.55101.8052
H92.21211.11042.15672.60632.55312.55103.12051.8052

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 107.473 C1 C2 H8 111.332
C1 C2 H9 111.332 C2 C1 H5 109.806
C2 C1 H6 110.379 C2 C1 H7 110.379
C2 O3 O4 108.430 O3 C2 H8 108.951
O3 C2 H9 108.951 H5 C1 H6 108.732
H5 C1 H7 108.732 H6 C1 H7 108.771
H8 C2 H9 108.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.052      
3 O -0.072      
4 O -0.078      
5 H 0.085      
6 H 0.086      
7 H 0.086      
8 H 0.085      
9 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.867 1.695 0.000 1.904
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.897 -0.689 0.000
y -0.689 -22.695 0.000
z 0.000 0.000 -21.185
Traceless
 xyz
x -0.957 -0.689 0.000
y -0.689 -0.654 0.000
z 0.000 0.000 1.611
Polar
3z2-r23.222
x2-y2-0.202
xy-0.689
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.067 0.829 0.000
y 0.829 2.575 0.000
z 0.000 0.000 1.809


<r2> (average value of r2) Å2
<r2> 92.463
(<r2>)1/2 9.616