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All results from a given calculation for CH3C(O)OO (acetyl peroxy radical)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-303.502326
Energy at 298.15K-303.506185
HF Energy-303.502326
Nuclear repulsion energy169.925644
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 B97D3/6-311+G(3df,2p)
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' 3117 3076 2.65      
2 A' 3010 2971 0.35      
3 A' 1845 1821 227.73      
4 A' 1430 1412 10.79      
5 A' 1363 1345 27.64      
6 A' 1144 1129 78.84      
7 A' 1074 1060 36.26      
8 A' 944 931 40.58      
9 A' 685 676 44.53      
10 A' 505 498 26.22      
11 A' 482 475 8.23      
12 A' 312 308 10.38      
13 A" 3074 3034 0.65      
14 A" 1433 1414 9.18      
15 A" 1011 998 7.67      
16 A" 516 509 5.16      
17 A" 147 145 1.52      
18 A" 133 131 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 11112.4 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 10968.0 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 B97D3/6-311+G(3df,2p)
ABC
0.30724 0.15784 0.10631

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.456 0.247 0.000
C2 0.000 0.583 0.000
O3 -0.542 1.642 0.000
O4 -0.915 -0.573 0.000
O5 -0.314 -1.751 0.000
H6 2.019 1.180 0.000
H7 1.707 -0.355 0.877
H8 1.707 -0.355 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.49462.43682.50932.66981.08921.09301.0930
C21.49461.18961.47392.35462.10532.13572.1357
O32.43681.18962.24563.40012.60213.13243.1324
O42.50931.47392.24561.32253.41762.77312.7731
O52.66982.35463.40011.32253.74612.60792.6079
H61.08922.10532.60213.41763.74611.79541.7954
H71.09302.13573.13242.77312.60791.79541.7543
H81.09302.13573.13242.77312.60791.79541.7543

picture of acetyl peroxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 125.180 C1 C2 O4 120.991
C2 C1 H6 108.180 C2 C1 H7 110.717
C2 C1 H8 110.717 C2 O4 O5 111.838
O3 C2 O4 113.829 H6 C1 H7 110.039
H6 C1 H8 110.039 H7 C1 H8 107.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 C 0.889      
3 O -0.622      
4 O -0.241      
5 O -0.218      
6 H 0.149      
7 H 0.164      
8 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.733 -0.007 0.000 2.733
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.287 0.936 0.000
y 0.936 -34.237 0.000
z 0.000 0.000 -26.644
Traceless
 xyz
x 3.154 0.936 0.000
y 0.936 -7.272 0.000
z 0.000 0.000 4.118
Polar
3z2-r28.236
x2-y26.950
xy0.936
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.948 -0.211 0.000
y -0.211 7.837 0.000
z 0.000 0.000 4.131


<r2> (average value of r2) Å2
<r2> 105.119
(<r2>)1/2 10.253