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

using model chemistry: PBEPBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-229.361758
Energy at 298.15K-229.367567
HF Energy-229.361758
Nuclear repulsion energy123.066854
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/cc-pVTZ
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' 3056 3035 12.23      
2 A' 2985 2964 17.76      
3 A' 2983 2962 4.81      
4 A' 1452 1442 6.63      
5 A' 1435 1425 1.21      
6 A' 1360 1351 16.63      
7 A' 1319 1310 12.14      
8 A' 1142 1134 8.83      
9 A' 1095 1087 0.84      
10 A' 982 976 11.78      
11 A' 792 787 0.70      
12 A' 485 482 9.22      
13 A' 292 290 1.35      
14 A" 3063 3042 23.06      
15 A" 3030 3009 4.65      
16 A" 1433 1423 7.27      
17 A" 1226 1217 0.15      
18 A" 1096 1088 4.20      
19 A" 771 766 2.10      
20 A" 205 203 0.26      
21 A" 73 73 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 15137.2 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 15032.7 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/cc-pVTZ
ABC
1.10777 0.14528 0.13506

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.490 0.937 0.000
C2 0.000 0.682 0.000
O3 -0.202 -0.776 0.000
O4 -1.491 -1.087 0.000
H5 1.677 2.020 0.000
H6 1.966 0.509 0.892
H7 1.966 0.509 -0.892
H8 -0.504 1.073 -0.895
H9 -0.504 1.073 0.895

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51202.40813.60331.09831.09771.09772.19042.1904
C21.51201.47222.31352.14452.16582.16581.09881.0988
O32.40811.47221.32563.36812.67332.67332.07582.0758
O43.60332.31351.32564.43643.91033.91032.53712.5371
H51.09832.14453.36814.43641.77811.77812.54052.5405
H61.09772.16582.67333.91031.77811.78343.10042.5339
H71.09772.16582.67333.91031.77811.78342.53393.1004
H82.19041.09882.07582.53712.54053.10042.53391.7898
H92.19041.09882.07582.53712.54052.53393.10041.7898

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 107.594 C1 C2 H8 113.114
C1 C2 H9 113.114 C2 C1 H5 109.466
C2 C1 H6 111.187 C2 C1 H7 111.187
C2 O3 O4 111.457 O3 C2 H8 106.780
O3 C2 H9 106.780 H5 C1 H6 108.129
H5 C1 H7 108.129 H6 C1 H7 108.644
H8 C2 H9 109.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 C 0.012      
3 O -0.027      
4 O -0.189      
5 H 0.103      
6 H 0.109      
7 H 0.109      
8 H 0.092      
9 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.728 2.393 0.000 2.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.066 -1.219 0.000
y -1.219 -25.337 0.000
z 0.000 0.000 -23.390
Traceless
 xyz
x -1.703 -1.219 0.000
y -1.219 -0.609 0.000
z 0.000 0.000 2.312
Polar
3z2-r24.624
x2-y2-0.729
xy-1.219
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.310 1.114 0.000
y 1.114 5.425 0.000
z 0.000 0.000 4.303


<r2> (average value of r2) Å2
<r2> 90.473
(<r2>)1/2 9.512