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

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-303.581202
Energy at 298.15K-303.585157
HF Energy-303.581202
Nuclear repulsion energy170.181888
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 TPSSh/6-31+G**
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' 3192 3073 2.24      
2 A' 3078 2963 0.22      
3 A' 1877 1806 232.21      
4 A' 1476 1420 10.64      
5 A' 1407 1354 27.94      
6 A' 1178 1134 93.61      
7 A' 1115 1073 60.94      
8 A' 979 943 46.20      
9 A' 733 705 53.91      
10 A' 541 521 11.76      
11 A' 489 470 12.14      
12 A' 316 304 9.37      
13 A" 3151 3033 0.53      
14 A" 1481 1426 10.04      
15 A" 1043 1003 7.06      
16 A" 528 508 6.16      
17 A" 153 147 1.59      
18 A" 139 134 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 11436.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 11007.7 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 TPSSh/6-31+G**
ABC
0.30712 0.15965 0.10713

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.447 0.210 0.000
C2 0.000 0.524 0.000
O3 -0.478 1.650 0.000
O4 -0.953 -0.504 0.000
O5 -0.333 -1.746 0.000
H6 1.993 1.151 0.000
H7 1.716 -0.379 0.881
H8 1.716 -0.379 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.48082.40412.50412.64471.08691.09341.0934
C21.48081.22351.40162.29372.08892.12962.1296
O32.40411.22352.20603.39882.52083.11563.1156
O42.50411.40162.20601.38753.37842.81292.8129
O52.64472.29373.39881.38753.71422.61522.6152
H61.08692.08892.52083.37843.71421.78681.7868
H71.09342.12963.11562.81292.61521.78681.7615
H81.09342.12963.11562.81292.61521.78681.7615

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 125.220 C1 C2 O4 120.600
C2 C1 H6 107.905 C2 C1 H7 110.745
C2 C1 H8 110.745 C2 O4 O5 110.645
O3 C2 O4 114.180 H6 C1 H7 110.073
H6 C1 H8 110.073 H7 C1 H8 107.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.388      
2 C 0.286      
3 O -0.332      
4 O -0.058      
5 O -0.126      
6 H 0.199      
7 H 0.209      
8 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.842 -0.238 0.000 2.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.244 -0.388 0.000
y -0.388 7.521 0.000
z 0.000 0.000 3.632


<r2> (average value of r2) Å2
<r2> 104.587
(<r2>)1/2 10.227