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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-46.137446
Energy at 298.15K-46.143333
HF Energy-46.137446
Nuclear repulsion energy70.511965
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/CEP-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' 3130 3023 35.93      
2 A' 3075 2970 21.27      
3 A' 3059 2954 17.95      
4 A' 1506 1455 6.39      
5 A' 1492 1441 1.10      
6 A' 1418 1369 21.34      
7 A' 1366 1319 13.12      
8 A' 1197 1156 18.69      
9 A' 1126 1087 9.65      
10 A' 1013 979 18.94      
11 A' 838 809 3.45      
12 A' 489 473 11.67      
13 A' 298 288 1.29      
14 A" 3149 3041 65.71      
15 A" 3124 3017 1.45      
16 A" 1483 1432 7.05      
17 A" 1261 1218 0.02      
18 A" 1139 1099 4.60      
19 A" 786 759 2.15      
20 A" 222 215 0.42      
21 A" 87 84 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 15628.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 15092.8 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/CEP-31G*
ABC
1.08583 0.14374 0.13348

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.518 0.920 0.000
C2 0.000 0.684 0.000
O3 -0.209 -0.777 0.000
O4 -1.517 -1.068 0.000
H5 1.718 2.006 0.000
H6 1.984 0.479 0.896
H7 1.984 0.479 -0.896
H8 -0.494 1.085 -0.900
H9 -0.494 1.085 0.900

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.53602.42073.62761.10411.10271.10272.20982.2098
C21.53601.47502.31692.16792.18682.18681.10231.1023
O32.42071.47501.33973.38452.68112.68112.08742.0874
O43.62762.31691.33974.46223.93073.93072.54812.5481
H51.10412.16793.38454.46221.79071.79072.55912.5591
H61.10272.18682.68113.93071.79071.79273.12002.5511
H71.10272.18682.68113.93071.79071.79272.55113.1200
H82.20981.10232.08742.54812.55913.12002.55111.7998
H92.20981.10232.08742.54812.55912.55113.12001.7998

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 107.004 C1 C2 H8 112.737
C1 C2 H9 112.737 C2 C1 H5 109.315
C2 C1 H6 110.875 C2 C1 H7 110.875
C2 O3 O4 110.711 O3 C2 H8 107.298
O3 C2 H9 107.298 H5 C1 H6 108.479
H5 C1 H7 108.479 H6 C1 H7 108.752
H8 C2 H9 109.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.371      
2 C -0.237      
3 O -0.060      
4 O -0.164      
5 H 0.160      
6 H 0.158      
7 H 0.158      
8 H 0.178      
9 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.662 2.631 0.000 3.112
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.639 -1.248 0.000
y -1.248 -24.908 0.000
z 0.000 0.000 -22.763
Traceless
 xyz
x -1.803 -1.248 0.000
y -1.248 -0.707 0.000
z 0.000 0.000 2.510
Polar
3z2-r25.020
x2-y2-0.731
xy-1.248
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.746 1.125 0.000
y 1.125 4.476 0.000
z 0.000 0.000 3.466


<r2> (average value of r2) Å2
<r2> 75.632
(<r2>)1/2 8.697