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

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-228.261299
Energy at 298.15K-228.267514
HF Energy-228.261299
Nuclear repulsion energy125.328486
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 HF/cc-pVDZ
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' 3273 2972 31.43      
2 A' 3216 2920 22.86      
3 A' 3192 2898 21.72      
4 A' 1626 1476 3.09      
5 A' 1600 1453 2.00      
6 A' 1546 1404 26.46      
7 A' 1496 1358 5.18      
8 A' 1271 1154 94.77      
9 A' 1249 1134 18.35      
10 A' 1128 1024 16.32      
11 A' 954 866 7.15      
12 A' 552 501 7.63      
13 A' 334 303 1.10      
14 A" 3286 2984 60.85      
15 A" 3261 2961 3.42      
16 A" 1579 1434 5.33      
17 A" 1386 1258 0.88      
18 A" 1267 1150 6.33      
19 A" 871 791 0.39      
20 A" 260 236 0.74      
21 A" 104 94 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 16723.7 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 15185.2 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 HF/cc-pVDZ
ABC
1.14128 0.15098 0.14036

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.882 0.000
C2 0.000 0.658 0.000
O3 -0.220 -0.749 0.000
O4 -1.484 -1.029 0.000
H5 1.706 1.952 0.000
H6 1.952 0.438 0.885
H7 1.952 0.438 -0.885
H8 -0.473 1.080 -0.887
H9 -0.473 1.080 0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51122.36623.53821.09131.09081.09082.16732.1673
C21.51121.42372.24622.14172.15462.15461.09021.0902
O32.36621.42371.29413.31772.62872.62872.04842.0484
O43.53822.24621.29414.36593.83913.83912.50102.5010
H51.09132.14173.31774.36591.77141.77142.50922.5092
H61.09082.15462.62873.83911.77141.77013.07152.5090
H71.09082.15462.62873.83911.77141.77012.50903.0715
H82.16731.09022.04842.50102.50923.07152.50901.7733
H92.16731.09022.04842.50102.50922.50903.07151.7733

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 107.421 C1 C2 H8 111.825
C1 C2 H9 111.825 C2 C1 H5 109.708
C2 C1 H6 110.767 C2 C1 H7 110.767
C2 O3 O4 111.383 O3 C2 H8 108.409
O3 C2 H9 108.409 H5 C1 H6 108.539
H5 C1 H7 108.539 H6 C1 H7 108.457
H8 C2 H9 108.834
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.080      
2 C 0.185      
3 O -0.260      
4 O -0.067      
5 H 0.041      
6 H 0.051      
7 H 0.051      
8 H 0.040      
9 H 0.040      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.072 2.248 0.000 2.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.323 -0.742 0.000
y -0.742 -25.148 0.000
z 0.000 0.000 -23.153
Traceless
 xyz
x -1.173 -0.742 0.000
y -0.742 -0.910 0.000
z 0.000 0.000 2.083
Polar
3z2-r24.166
x2-y2-0.175
xy-0.742
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.045 0.724 0.000
y 0.724 4.120 0.000
z 0.000 0.000 3.595


<r2> (average value of r2) Å2
<r2> 87.587
(<r2>)1/2 9.359