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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-229.561902
Energy at 298.15K-229.567875
HF Energy-229.561902
Nuclear repulsion energy124.667283
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 mPW1PW91/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' 3145 3017 13.70      
2 A' 3076 2951 14.12      
3 A' 3068 2942 9.36      
4 A' 1509 1447 6.79      
5 A' 1497 1436 1.19      
6 A' 1421 1363 20.98      
7 A' 1384 1327 7.59      
8 A' 1249 1198 19.78      
9 A' 1150 1103 6.51      
10 A' 1046 1004 18.03      
11 A' 865 830 2.15      
12 A' 513 492 9.95      
13 A' 309 296 1.39      
14 A" 3152 3024 25.56      
15 A" 3123 2995 3.53      
16 A" 1485 1424 7.10      
17 A" 1284 1231 0.30      
18 A" 1155 1108 4.56      
19 A" 803 771 1.68      
20 A" 223 214 0.33      
21 A" 80 76 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 15767.2 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 15123.9 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 mPW1PW91/cc-pVTZ
ABC
1.13617 0.14894 0.13852

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.484 0.914 0.000
C2 0.000 0.668 0.000
O3 -0.211 -0.762 0.000
O4 -1.477 -1.060 0.000
H5 1.675 1.986 0.000
H6 1.953 0.484 0.884
H7 1.953 0.484 -0.884
H8 -0.491 1.068 -0.887
H9 -0.491 1.068 0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50462.38393.55911.08961.08911.08912.17112.1711
C21.50461.44602.27362.13162.15182.15181.08991.0899
O32.38391.44601.30093.33362.64912.64912.05332.0533
O43.55912.27361.30094.38393.86433.86432.50762.5076
H51.08962.13163.33364.38391.76531.76532.51462.5146
H61.08912.15182.64913.86431.76531.76873.07452.5130
H71.08912.15182.64913.86431.76531.76872.51303.0745
H82.17111.08992.05332.50762.51463.07452.51301.7737
H92.17111.08992.05332.50762.51462.51303.07451.7737

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 107.773 C1 C2 H8 112.634
C1 C2 H9 112.634 C2 C1 H5 109.469
C2 C1 H6 111.103 C2 C1 H7 111.103
C2 O3 O4 111.617 O3 C2 H8 107.299
O3 C2 H9 107.299 H5 C1 H6 108.244
H5 C1 H7 108.244 H6 C1 H7 108.588
H8 C2 H9 108.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 C 0.039      
3 O -0.047      
4 O -0.178      
5 H 0.090      
6 H 0.098      
7 H 0.098      
8 H 0.083      
9 H 0.083      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.631 2.376 0.000 2.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.731 -1.169 0.000
y -1.169 -25.055 0.000
z 0.000 0.000 -23.077
Traceless
 xyz
x -1.665 -1.169 0.000
y -1.169 -0.651 0.000
z 0.000 0.000 2.316
Polar
3z2-r24.633
x2-y2-0.676
xy-1.169
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.012 1.003 0.000
y 1.003 5.046 0.000
z 0.000 0.000 4.114


<r2> (average value of r2) Å2
<r2> 88.491
(<r2>)1/2 9.407