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

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-226.497202
Energy at 298.15K-226.502871
HF Energy-226.497202
Nuclear repulsion energy120.386495
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 B3PW91/STO-3G
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' 3509 3105 0.06      
2 A' 3339 2955 0.19      
3 A' 3315 2934 1.67      
4 A' 1682 1489 4.36      
5 A' 1643 1454 0.96      
6 A' 1567 1387 2.24      
7 A' 1458 1290 13.40      
8 A' 1318 1166 16.45      
9 A' 1218 1078 2.38      
10 A' 1104 977 1.56      
11 A' 933 826 3.16      
12 A' 490 434 2.34      
13 A' 291 258 0.32      
14 A" 3515 3111 0.16      
15 A" 3431 3036 2.95      
16 A" 1671 1479 4.18      
17 A" 1355 1199 0.14      
18 A" 1174 1039 5.27      
19 A" 854 756 2.33      
20 A" 196 173 0.19      
21 A" 60 53 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17060.3 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 15098.3 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 B3PW91/STO-3G
ABC
1.04865 0.13961 0.12935

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.519 0.965 0.000
C2 0.000 0.687 0.000
O3 -0.192 -0.818 0.000
O4 -1.535 -1.089 0.000
H5 1.698 2.051 0.000
H6 1.989 0.531 0.894
H7 1.989 0.531 -0.894
H8 -0.487 1.113 -0.901
H9 -0.487 1.113 0.901

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.54432.47103.68081.09991.09931.09932.20412.2041
C21.54431.51682.34732.17802.18652.18651.10941.1094
O32.47101.51681.37073.43502.71572.71572.15092.1509
O43.68082.34731.37074.50673.98073.98072.59942.5994
H51.09992.17803.43504.50671.78671.78672.54312.5431
H61.09932.18652.71573.98071.78671.78703.11332.5441
H71.09932.18652.71573.98071.78671.78702.54413.1133
H82.20411.10942.15092.59942.54313.11332.54411.8022
H92.20411.10942.15092.59942.54312.54413.11331.8022

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 107.654 C1 C2 H8 111.265
C1 C2 H9 111.265 C2 C1 H5 109.774
C2 C1 H6 110.469 C2 C1 H7 110.469
C2 O3 O4 108.658 O3 C2 H8 108.987
O3 C2 H9 108.987 H5 C1 H6 108.672
H5 C1 H7 108.672 H6 C1 H7 108.737
H8 C2 H9 108.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.236      
2 C -0.060      
3 O -0.069      
4 O -0.081      
5 H 0.089      
6 H 0.090      
7 H 0.090      
8 H 0.089      
9 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.882 1.709 0.000 1.923
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.899 -0.712 0.000
y -0.712 -22.659 0.000
z 0.000 0.000 -21.135
Traceless
 xyz
x -1.002 -0.712 0.000
y -0.712 -0.643 0.000
z 0.000 0.000 1.644
Polar
3z2-r23.289
x2-y2-0.239
xy-0.712
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.005 0.811 0.000
y 0.811 2.531 0.000
z 0.000 0.000 1.784


<r2> (average value of r2) Å2
<r2> 91.875
(<r2>)1/2 9.585