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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-229.450660
Energy at 298.15K-229.456612
HF Energy-229.450660
Nuclear repulsion energy124.410156
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 B1B95/6-31+G**
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' 3171 3034 12.97      
2 A' 3098 2964 13.29      
3 A' 3086 2952 11.37      
4 A' 1510 1445 7.89      
5 A' 1500 1435 1.24      
6 A' 1426 1364 24.83      
7 A' 1379 1319 8.60      
8 A' 1260 1205 18.13      
9 A' 1147 1098 7.08      
10 A' 1048 1003 18.72      
11 A' 863 826 2.38      
12 A' 510 488 10.03      
13 A' 306 293 1.61      
14 A" 3180 3042 23.67      
15 A" 3154 3017 2.98      
16 A" 1489 1425 8.73      
17 A" 1279 1224 0.29      
18 A" 1151 1101 4.98      
19 A" 801 766 1.34      
20 A" 227 217 0.33      
21 A" 77 74 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 15831.9 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 15144.8 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 B1B95/6-31+G**
ABC
1.12836 0.14856 0.13811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.487 0.911 0.000
C2 0.000 0.672 0.000
O3 -0.210 -0.762 0.000
O4 -1.482 -1.061 0.000
H5 1.683 1.985 0.000
H6 1.955 0.479 0.886
H7 1.955 0.479 -0.886
H8 -0.493 1.069 -0.889
H9 -0.493 1.069 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50652.38363.56411.09131.09081.09082.17662.1766
C21.50651.44982.27992.13432.15462.15461.09131.0913
O32.38361.44981.30623.33612.64782.64782.05492.0549
O43.56412.27991.30624.39203.86823.86822.51032.5103
H51.09132.13433.33614.39201.76791.76792.52302.5230
H61.09082.15462.64783.86821.76791.77203.08042.5173
H71.09082.15462.64783.86821.76791.77202.51733.0804
H82.17661.09132.05492.51032.52303.08042.51731.7788
H92.17661.09132.05492.51032.52302.51733.08041.7788

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 107.447 C1 C2 H8 112.853
C1 C2 H9 112.853 C2 C1 H5 109.449
C2 C1 H6 111.099 C2 C1 H7 111.099
C2 O3 O4 111.529 O3 C2 H8 107.087
O3 C2 H9 107.087 H5 C1 H6 108.232
H5 C1 H7 108.232 H6 C1 H7 108.640
H8 C2 H9 109.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.513      
2 C -0.137      
3 O -0.042      
4 O -0.194      
5 H 0.173      
6 H 0.181      
7 H 0.181      
8 H 0.175      
9 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.773 2.645 0.000 3.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.122 -1.266 0.000
y -1.266 -25.509 0.000
z 0.000 0.000 -23.314
Traceless
 xyz
x -1.710 -1.266 0.000
y -1.266 -0.791 0.000
z 0.000 0.000 2.501
Polar
3z2-r25.002
x2-y2-0.613
xy-1.266
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.079 0.997 0.000
y 0.997 5.066 0.000
z 0.000 0.000 4.126


<r2> (average value of r2) Å2
<r2> 88.925
(<r2>)1/2 9.430