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

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-303.573116
Energy at 298.15K-303.577184
HF Energy-303.573116
Nuclear repulsion energy172.144587
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 wB97X-D/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' 3198 3057 1.54      
2 A' 3085 2949 0.29      
3 A' 1934 1849 259.15      
4 A' 1461 1397 10.30      
5 A' 1407 1345 35.81      
6 A' 1256 1201 21.93      
7 A' 1173 1122 166.53      
8 A' 1004 960 36.77      
9 A' 767 733 47.47      
10 A' 574 549 8.41      
11 A' 516 494 14.39      
12 A' 342 327 9.41      
13 A" 3159 3020 0.28      
14 A" 1475 1410 9.43      
15 A" 1054 1008 10.37      
16 A" 551 527 6.03      
17 A" 144 138 1.09      
18 A" 130 125 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 11615.0 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 11103.9 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 wB97X-D/cc-pVTZ
ABC
0.31258 0.16333 0.10943

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.435 0.202 0.000
C2 0.000 0.517 0.000
O3 -0.454 1.650 0.000
O4 -0.954 -0.502 0.000
O5 -0.340 -1.733 0.000
H6 1.983 1.136 0.000
H7 1.694 -0.384 0.879
H8 1.694 -0.384 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.46882.37942.49022.62561.08261.08801.0880
C21.46881.22031.39602.27532.07712.11072.1107
O32.37941.22032.20963.38452.49003.08583.0858
O42.49021.39602.20961.37503.36262.79292.7929
O52.62562.27533.38451.37503.69112.59472.5947
H61.08262.07712.49003.36263.69111.77901.7790
H71.08802.11073.08582.79292.59471.77901.7588
H81.08802.11073.08582.79292.59471.77901.7588

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 124.197 C1 C2 O4 120.722
C2 C1 H6 108.038 C2 C1 H7 110.396
C2 C1 H8 110.396 C2 O4 O5 110.389
O3 C2 O4 115.080 H6 C1 H7 110.085
H6 C1 H8 110.085 H7 C1 H8 107.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 C 0.278      
3 O -0.219      
4 O -0.005      
5 O -0.143      
6 H 0.113      
7 H 0.114      
8 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.625 -0.362 0.000 2.650
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.043 0.924 0.000
y 0.924 -33.695 0.000
z 0.000 0.000 -26.257
Traceless
 xyz
x 2.933 0.924 0.000
y 0.924 -7.045 0.000
z 0.000 0.000 4.112
Polar
3z2-r28.224
x2-y26.652
xy0.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.944 -0.338 0.000
y -0.338 6.752 0.000
z 0.000 0.000 3.513


<r2> (average value of r2) Å2
<r2> 102.528
(<r2>)1/2 10.126