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

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-302.060519
Energy at 298.15K-302.064889
HF Energy-302.060519
Nuclear repulsion energy173.816682
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/TZVP
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' 3314 3011 4.37      
2 A' 3210 2917 0.81      
3 A' 2070 1881 371.95      
4 A' 1587 1442 9.05      
5 A' 1538 1398 27.94      
6 A' 1321 1200 226.68      
7 A' 1278 1161 97.37      
8 A' 1108 1007 47.84      
9 A' 852 774 28.71      
10 A' 637 579 0.69      
11 A' 564 513 20.09      
12 A' 360 327 7.11      
13 A" 3279 2979 5.30      
14 A" 1599 1452 9.15      
15 A" 1162 1055 10.87      
16 A" 613 557 16.89      
17 A" 199 181 0.00      
18 A" 136 123 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 12413.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 11278.5 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/TZVP
ABC
0.31595 0.16724 0.11159

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.453 0.164 0.000
C2 0.000 0.541 0.000
O3 -0.440 1.622 0.000
O4 -0.924 -0.492 0.000
O5 -0.403 -1.688 0.000
H6 2.020 1.081 0.000
H7 1.694 -0.424 0.875
H8 1.694 -0.424 -0.875

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8
C11.50112.38892.46552.62181.07821.08151.0815
C21.50111.16671.38562.26512.09132.13712.1371
O32.38891.16672.16833.31002.51893.08303.0830
O42.46551.38562.16831.30473.33782.76072.7607
O52.62182.26513.31001.30473.67952.59952.5995
H61.07822.09132.51893.33783.67951.77141.7714
H71.08152.13713.08302.76072.59951.77141.7492
H81.08152.13713.08302.76072.59951.77141.7492

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 126.679 C1 C2 O4 117.263
C2 C1 H6 107.213 C2 C1 H7 110.634
C2 C1 H8 110.634 C2 O4 O5 114.664
O3 C2 O4 116.058 H6 C1 H7 110.217
H6 C1 H8 110.217 H7 C1 H8 107.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 C 0.338      
3 O -0.356      
4 O -0.088      
5 O -0.048      
6 H 0.133      
7 H 0.120      
8 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.976 -1.299 0.000 3.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.947 1.127 0.000
y 1.127 -34.248 0.000
z 0.000 0.000 -26.288
Traceless
 xyz
x 2.321 1.127 0.000
y 1.127 -7.131 0.000
z 0.000 0.000 4.809
Polar
3z2-r29.619
x2-y26.301
xy1.127
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.230 -0.381 0.000
y -0.381 6.021 0.000
z 0.000 0.000 3.281


<r2> (average value of r2) Å2
<r2> 101.326
(<r2>)1/2 10.066