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

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-229.627181
Energy at 298.15K-229.633116
HF Energy-229.627181
Nuclear repulsion energy123.811878
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 B3LYP/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' 3110 3006 16.97      
2 A' 3055 2953 13.56      
3 A' 3044 2942 10.45      
4 A' 1509 1458 5.92      
5 A' 1496 1446 1.19      
6 A' 1419 1372 15.08      
7 A' 1381 1335 13.58      
8 A' 1193 1153 15.58      
9 A' 1134 1096 4.69      
10 A' 1016 982 17.23      
11 A' 841 813 3.75      
12 A' 502 486 10.04      
13 A' 307 296 1.40      
14 A" 3121 3017 31.78      
15 A" 3096 2993 0.99      
16 A" 1486 1437 6.60      
17 A" 1278 1235 0.29      
18 A" 1150 1112 4.39      
19 A" 805 778 1.32      
20 A" 220 212 0.37      
21 A" 77 74 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 15619.8 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 15098.1 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 B3LYP/cc-pVTZ
ABC
1.12368 0.14680 0.13649

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.490 0.925 0.000
C2 0.000 0.677 0.000
O3 -0.207 -0.768 0.000
O4 -1.487 -1.074 0.000
H5 1.680 1.998 0.000
H6 1.959 0.495 0.885
H7 1.959 0.495 -0.885
H8 -0.493 1.071 -0.888
H9 -0.493 1.071 0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51092.39723.58631.09021.08951.08952.17812.1781
C21.51091.45952.29722.13732.15752.15751.08961.0896
O32.39721.45951.31633.34862.65952.65952.06242.0624
O43.58632.29721.31634.41243.88923.88922.52572.5257
H51.09022.13733.34864.41241.76631.76632.52372.5237
H61.08952.15752.65953.88921.76631.76983.08042.5192
H71.08952.15752.65953.88921.76631.76982.51923.0804
H82.17811.08962.06242.52572.52373.08042.51921.7756
H92.17811.08962.06242.52572.52372.51923.08041.7756

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 107.602 C1 C2 H8 112.771
C1 C2 H9 112.771 C2 C1 H5 109.447
C2 C1 H6 111.096 C2 C1 H7 111.096
C2 O3 O4 111.601 O3 C2 H8 107.118
O3 C2 H9 107.118 H5 C1 H6 108.248
H5 C1 H7 108.248 H6 C1 H7 108.617
H8 C2 H9 109.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.295      
2 C 0.028      
3 O -0.059      
4 O -0.178      
5 H 0.100      
6 H 0.108      
7 H 0.108      
8 H 0.095      
9 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.658 2.428 0.000 2.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.036 -1.205 0.000
y -1.205 -25.343 0.000
z 0.000 0.000 -23.342
Traceless
 xyz
x -1.694 -1.205 0.000
y -1.205 -0.654 0.000
z 0.000 0.000 2.348
Polar
3z2-r24.696
x2-y2-0.693
xy-1.205
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.100 1.041 0.000
y 1.041 5.147 0.000
z 0.000 0.000 4.163


<r2> (average value of r2) Å2
<r2> 89.657
(<r2>)1/2 9.469