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

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-302.074454
Energy at 298.15K-302.078840
HF Energy-302.074454
Nuclear repulsion energy174.105339
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 HF/daug-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' 3303 2988 5.26      
2 A' 3201 2896 0.66      
3 A' 2057 1861 370.96      
4 A' 1583 1432 8.81      
5 A' 1536 1390 28.30      
6 A' 1325 1199 214.83      
7 A' 1287 1164 97.15      
8 A' 1109 1003 42.99      
9 A' 857 775 26.44      
10 A' 640 579 0.75      
11 A' 562 508 20.32      
12 A' 360 325 6.83      
13 A" 3267 2955 4.92      
14 A" 1597 1445 7.73      
15 A" 1163 1052 10.38      
16 A" 616 557 13.06      
17 A" 204 184 0.00      
18 A" 147 133 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 12406.2 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 11222.6 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 HF/daug-cc-pVTZ
ABC
0.31675 0.16787 0.11196

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.452 0.163 0.000
C2 0.000 0.539 0.000
O3 -0.440 1.620 0.000
O4 -0.921 -0.491 0.000
O5 -0.403 -1.684 0.000
H6 2.020 1.078 0.000
H7 1.690 -0.427 0.873
H8 1.690 -0.427 -0.873

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.49932.38752.46112.61741.07721.08071.0807
C21.49931.16751.38182.25882.09082.13342.1334
O32.38751.16752.16573.30412.51903.08063.0806
O42.46111.38182.16571.30003.33362.75402.7540
O52.61742.25883.30411.30003.67412.59312.5931
H61.07722.09082.51903.33363.67411.77101.7710
H71.08072.13343.08062.75402.59311.77101.7467
H81.08072.13343.08062.75402.59311.77101.7467

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 126.642 C1 C2 O4 117.290
C2 C1 H6 107.356 C2 C1 H7 110.520
C2 C1 H8 110.520 C2 O4 O5 114.724
O3 C2 O4 116.068 H6 C1 H7 110.314
H6 C1 H8 110.314 H7 C1 H8 107.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.899      
2 C 1.054      
3 O -1.253      
4 O -0.258      
5 O -0.371      
6 H 0.612      
7 H 0.558      
8 H 0.558      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.795 -1.332 0.000 3.096
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.615 1.145 0.000
y 1.145 -33.919 0.000
z 0.000 0.000 -26.356
Traceless
 xyz
x 2.523 1.145 0.000
y 1.145 -6.933 0.000
z 0.000 0.000 4.411
Polar
3z2-r28.822
x2-y26.304
xy1.145
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.966 -0.275 0.000
y -0.275 6.346 0.000
z 0.000 0.000 3.836


<r2> (average value of r2) Å2
<r2> 100.931
(<r2>)1/2 10.046