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

using model chemistry: TPSSh/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-303.682416
Energy at 298.15K-303.686393
HF Energy-303.682416
Nuclear repulsion energy170.864958
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/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' 3165 3065 2.71      
2 A' 3060 2963 0.23      
3 A' 1874 1815 220.25      
4 A' 1467 1420 10.04      
5 A' 1398 1354 26.72      
6 A' 1177 1140 89.05      
7 A' 1112 1077 56.70      
8 A' 976 945 46.33      
9 A' 733 709 49.31      
10 A' 542 525 11.35      
11 A' 491 476 12.44      
12 A' 316 306 9.41      
13 A" 3124 3025 0.86      
14 A" 1472 1425 8.35      
15 A" 1043 1010 7.59      
16 A" 532 515 5.26      
17 A" 152 148 1.55      
18 A" 138 133 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 11386.2 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 11025.3 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 TPSSh/cc-pVTZ
ABC
0.30991 0.16079 0.10796

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.440 0.204 0.000
C2 0.000 0.522 0.000
O3 -0.468 1.650 0.000
O4 -0.954 -0.500 0.000
O5 -0.333 -1.739 0.000
H6 1.988 1.139 0.000
H7 1.703 -0.387 0.879
H8 1.703 -0.387 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.47482.39382.49492.63031.08461.09111.0911
C21.47481.22041.39842.28622.08192.12142.1214
O32.39381.22042.20433.39172.50873.10363.1036
O42.49491.39842.20431.38573.36812.80092.8009
O52.63032.28623.39171.38573.69812.59802.5980
H61.08462.08192.50873.36813.69811.78381.7838
H71.09112.12143.10362.80092.59801.78381.7582
H81.09112.12143.10362.80092.59801.78381.7582

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 125.020 C1 C2 O4 120.506
C2 C1 H6 107.896 C2 C1 H7 110.648
C2 C1 H8 110.648 C2 O4 O5 110.404
O3 C2 O4 114.474 H6 C1 H7 110.153
H6 C1 H8 110.153 H7 C1 H8 107.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 C 0.272      
3 O -0.214      
4 O -0.008      
5 O -0.148      
6 H 0.103      
7 H 0.110      
8 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.588 -0.258 0.000 2.601
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 5.106 -0.308 0.000
y -0.308 7.014 0.000
z 0.000 0.000 3.533


<r2> (average value of r2) Å2
<r2> 103.598
(<r2>)1/2 10.178