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

using model chemistry: B1B95/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 B1B95/cc-pVTZ
 hartrees
Energy at 0K-229.521803
Energy at 298.15K-229.527761
HF Energy-229.521803
Nuclear repulsion energy124.843586
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/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' 3151 3016 14.04      
2 A' 3081 2949 13.94      
3 A' 3073 2941 9.71      
4 A' 1507 1443 6.53      
5 A' 1495 1431 1.11      
6 A' 1418 1357 20.76      
7 A' 1381 1321 7.69      
8 A' 1252 1199 18.65      
9 A' 1147 1098 6.20      
10 A' 1048 1003 17.97      
11 A' 864 827 2.23      
12 A' 509 488 9.96      
13 A' 305 292 1.49      
14 A" 3158 3023 25.72      
15 A" 3129 2994 3.61      
16 A" 1484 1421 6.86      
17 A" 1282 1227 0.36      
18 A" 1152 1103 4.45      
19 A" 799 765 1.53      
20 A" 222 213 0.34      
21 A" 78 74 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 15767.5 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 15091.0 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/cc-pVTZ
ABC
1.13858 0.14943 0.13895

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.482 0.912 0.000
C2 0.000 0.667 0.000
O3 -0.210 -0.762 0.000
O4 -1.476 -1.057 0.000
H5 1.674 1.982 0.000
H6 1.949 0.482 0.883
H7 1.949 0.482 -0.883
H8 -0.492 1.065 -0.885
H9 -0.492 1.065 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50242.37983.55371.08751.08701.08702.16872.1687
C21.50241.44422.27002.12852.14752.14751.08781.0878
O32.37981.44421.30023.32812.64302.64302.04902.0490
O43.55372.27001.30024.37723.85723.85722.50122.5012
H51.08752.12853.32814.37721.76231.76232.51282.5128
H61.08702.14752.64303.85721.76231.76573.06932.5089
H71.08702.14752.64303.85721.76231.76572.50893.0693
H82.16871.08782.04902.50122.51283.06932.50891.7706
H92.16871.08782.04902.50122.51282.50893.06931.7706

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 107.713 C1 C2 H8 112.730
C1 C2 H9 112.730 C2 C1 H5 109.500
C2 C1 H6 111.042 C2 C1 H7 111.042
C2 O3 O4 111.500 O3 C2 H8 107.208
O3 C2 H9 107.208 H5 C1 H6 108.275
H5 C1 H7 108.275 H6 C1 H7 108.622
H8 C2 H9 108.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 C -0.027      
3 O -0.039      
4 O -0.180      
5 H 0.118      
6 H 0.127      
7 H 0.127      
8 H 0.114      
9 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.661 2.396 0.000 2.915
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.779 -1.193 0.000
y -1.193 -25.060 0.000
z 0.000 0.000 -23.090
Traceless
 xyz
x -1.704 -1.193 0.000
y -1.193 -0.626 0.000
z 0.000 0.000 2.330
Polar
3z2-r24.659
x2-y2-0.719
xy-1.193
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.002 0.992 0.000
y 0.992 5.039 0.000
z 0.000 0.000 4.116


<r2> (average value of r2) Å2
<r2> 88.266
(<r2>)1/2 9.395