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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-301.724841
Energy at 298.15K-301.728667
HF Energy-301.724841
Nuclear repulsion energy 
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 B97D3/3-21G
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' 3144 3090 3.29      
2 A' 3042 2990 0.59      
3 A' 1788 1757 129.42      
4 A' 1488 1463 10.92      
5 A' 1418 1394 48.24      
6 A' 1132 1113 80.54      
7 A' 1038 1021 8.95      
8 A' 913 898 61.74      
9 A' 651 640 52.42      
10 A' 475 467 11.67      
11 A' 456 448 5.81      
12 A' 333 327 9.79      
13 A" 3103 3050 0.23      
14 A" 1505 1479 13.34      
15 A" 1058 1040 12.27      
16 A" 533 524 3.13      
17 A" 160 158 0.88      
18 A" 121 119 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 11178.9 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 10988.9 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 B97D3/3-21G
ABC
0.30228 0.14989 0.10210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.445 0.203 0.000
C2 0.000 0.613 0.000
O3 -0.526 1.709 0.000
O4 -0.963 -0.552 0.000
O5 -0.267 -1.804 0.000
H6 2.061 1.107 0.000
H7 1.659 -0.416 0.881
H8 1.659 -0.416 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.50202.48052.52312.63761.09391.09731.0973
C21.50201.21561.51122.43152.11912.14182.1418
O32.48051.21562.30253.52232.65603.17263.1726
O42.52311.51122.30251.43243.44862.76962.7696
O52.63762.43153.52231.43243.72692.53272.5327
H61.09392.11912.65603.44863.72691.80381.8038
H71.09732.14183.17262.76962.53271.80381.7615
H81.09732.14183.17262.76962.53271.80381.7615

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 126.371 C1 C2 O4 118.958
C2 C1 H6 107.769 C2 C1 H7 111.297
C2 C1 H8 111.297 C2 O4 O5 110.806
O3 C2 O4 114.671 H6 C1 H7 109.966
H6 C1 H8 109.966 H7 C1 H8 106.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.675      
2 C 0.599      
3 O -0.395      
4 O -0.201      
5 O -0.095      
6 H 0.243      
7 H 0.263      
8 H 0.263      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.670 -0.135 0.000 2.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.181 0.646 0.000
y 0.646 -32.913 0.000
z 0.000 0.000 -26.128
Traceless
 xyz
x 2.340 0.646 0.000
y 0.646 -6.258 0.000
z 0.000 0.000 3.918
Polar
3z2-r27.837
x2-y25.732
xy0.646
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.993 -0.364 0.000
y -0.364 6.332 0.000
z 0.000 0.000 2.466


<r2> (average value of r2) Å2
<r2> 107.883
(<r2>)1/2 10.387