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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-228.180511
Energy at 298.15K-228.186398
HF Energy-228.180511
Nuclear repulsion energy121.437732
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 B1B95/3-21G
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' 3176 3038 11.29      
2 A' 3121 2986 9.06      
3 A' 3098 2964 6.47      
4 A' 1569 1501 9.62      
5 A' 1558 1491 3.35      
6 A' 1464 1400 18.08      
7 A' 1382 1322 15.04      
8 A' 1155 1105 8.64      
9 A' 1136 1087 34.34      
10 A' 1029 985 13.45      
11 A' 853 816 1.72      
12 A' 473 452 9.84      
13 A' 284 272 0.84      
14 A" 3194 3056 26.14      
15 A" 3168 3031 0.48      
16 A" 1549 1482 9.70      
17 A" 1305 1248 0.53      
18 A" 1156 1106 4.99      
19 A" 842 806 3.49      
20 A" 216 206 0.44      
21 A" 76 73 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 15900.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15212.4 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 B1B95/3-21G
ABC
1.05636 0.14380 0.13294

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.939 0.000
C2 0.000 0.686 0.000
O3 -0.161 -0.794 0.000
O4 -1.537 -1.069 0.000
H5 1.693 2.013 0.000
H6 1.952 0.497 0.887
H7 1.952 0.497 -0.887
H8 -0.491 1.073 -0.892
H9 -0.491 1.073 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51642.39733.63671.09201.09101.09102.18152.1815
C21.51641.48922.33292.15072.15202.15201.08951.0895
O32.39731.48921.40343.36402.62972.62972.09612.0961
O43.63672.33291.40344.46413.92533.92532.54532.5453
H51.09202.15073.36404.46411.77551.77552.53922.5392
H61.09102.15202.62973.92531.77551.77313.07632.5100
H71.09102.15202.62973.92531.77551.77312.51003.0763
H82.18151.08952.09612.54532.53923.07632.51001.7842
H92.18151.08952.09612.54532.53922.51003.07631.7842

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 105.799 C1 C2 H8 112.656
C1 C2 H9 112.656 C2 C1 H5 110.024
C2 C1 H6 110.184 C2 C1 H7 110.184
C2 O3 O4 107.471 O3 C2 H8 107.738
O3 C2 H9 107.738 H5 C1 H6 108.852
H5 C1 H7 108.852 H6 C1 H7 108.708
H8 C2 H9 109.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.647      
2 C -0.189      
3 O -0.233      
4 O -0.112      
5 H 0.224      
6 H 0.237      
7 H 0.237      
8 H 0.241      
9 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.281 2.534 0.000 2.839
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.790 -0.909 0.000
y -0.909 -24.743 0.000
z 0.000 0.000 -22.836
Traceless
 xyz
x -1.000 -0.909 0.000
y -0.909 -0.930 0.000
z 0.000 0.000 1.931
Polar
3z2-r23.861
x2-y2-0.047
xy-0.909
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.087 1.026 0.000
y 1.026 4.017 0.000
z 0.000 0.000 3.234


<r2> (average value of r2) Å2
<r2> 90.868
(<r2>)1/2 9.532