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

using model chemistry: wB97X-D/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-303.577958
Energy at 298.15K-303.582031
HF Energy-303.577958
Nuclear repulsion energy172.109095
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/aug-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' 3197 3058 1.54      
2 A' 3084 2950 0.29      
3 A' 1927 1843 272.90      
4 A' 1461 1398 10.80      
5 A' 1407 1346 33.49      
6 A' 1255 1200 20.21      
7 A' 1169 1118 166.90      
8 A' 1003 960 38.18      
9 A' 764 731 50.49      
10 A' 572 547 9.43      
11 A' 516 494 14.20      
12 A' 340 326 9.42      
13 A" 3157 3020 0.24      
14 A" 1474 1410 9.96      
15 A" 1054 1008 9.67      
16 A" 550 526 6.25      
17 A" 150 143 0.90      
18 A" 131 125 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 11604.9 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 11101.3 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 wB97X-D/aug-cc-pVTZ
ABC
0.31229 0.16326 0.10936

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.435 0.205 0.000
C2 0.000 0.517 0.000
O3 -0.457 1.649 0.000
O4 -0.953 -0.504 0.000
O5 -0.339 -1.734 0.000
H6 1.983 1.139 0.000
H7 1.696 -0.381 0.879
H8 1.696 -0.381 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.46872.38022.49072.62751.08271.08801.0880
C21.46871.22101.39582.27552.07802.11032.1103
O32.38021.22102.20883.38452.49223.08633.0863
O42.49071.39582.20881.37473.36352.79312.7931
O52.62752.27553.38451.37473.69312.59652.5965
H61.08272.07802.49223.36353.69311.77901.7790
H71.08802.11033.08632.79312.59651.77901.7588
H81.08802.11033.08632.79312.59651.77901.7588

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 124.231 C1 C2 O4 120.783
C2 C1 H6 108.111 C2 C1 H7 110.369
C2 C1 H8 110.369 C2 O4 O5 110.431
O3 C2 O4 114.986 H6 C1 H7 110.075
H6 C1 H8 110.075 H7 C1 H8 107.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.508      
2 C 0.539      
3 O -0.575      
4 O 0.004      
5 O -0.273      
6 H 0.200      
7 H 0.307      
8 H 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.693 -0.371 0.000 2.719
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.183 0.961 0.000
y 0.961 -34.036 0.000
z 0.000 0.000 -26.440
Traceless
 xyz
x 3.055 0.961 0.000
y 0.961 -7.224 0.000
z 0.000 0.000 4.170
Polar
3z2-r28.339
x2-y26.853
xy0.961
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.622 -0.278 0.000
y -0.278 7.362 0.000
z 0.000 0.000 4.107


<r2> (average value of r2) Å2
<r2> 102.719
(<r2>)1/2 10.135