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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-228.780546
Energy at 298.15K-228.786657
HF Energy-228.242401
Nuclear repulsion energy124.730791
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3253 3005 18.06      
2 A' 3194 2950 15.34      
3 A' 3171 2929 10.98      
4 A' 1608 1485 2.94      
5 A' 1590 1468 2.99      
6 A' 1519 1403 20.72      
7 A' 1468 1356 7.56      
8 A' 1274 1177 104.23      
9 A' 1219 1126 16.71      
10 A' 1109 1024 13.99      
11 A' 928 857 3.88      
12 A' 536 495 9.13      
13 A' 326 301 1.12      
14 A" 3266 3017 36.21      
15 A" 3245 2997 2.52      
16 A" 1576 1456 6.19      
17 A" 1351 1248 0.15      
18 A" 1236 1142 5.24      
19 A" 850 786 0.64      
20 A" 250 231 0.54      
21 A" 91 84 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 16530.4 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 15269.1 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 CID/6-31G*
ABC
1.12462 0.14993 0.13919

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.889 0.000
C2 0.000 0.669 0.000
O3 -0.213 -0.757 0.000
O4 -1.489 -1.037 0.000
H5 1.710 1.957 0.000
H6 1.948 0.445 0.884
H7 1.948 0.445 -0.884
H8 -0.480 1.078 -0.886
H9 -0.480 1.078 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51022.37153.55091.08901.08811.08812.17182.1718
C21.51021.44182.26442.14042.15082.15081.08771.0877
O32.37151.44181.30653.32582.62602.62602.05562.0556
O43.55092.26441.30654.38113.84593.84592.50582.5058
H51.08902.14043.32584.38111.76691.76692.52002.5200
H61.08812.15082.62603.84591.76691.76723.07032.5089
H71.08812.15082.62603.84591.76691.76722.50893.0703
H82.17181.08772.05562.50582.52003.07032.50891.7725
H92.17181.08772.05562.50582.52002.50893.07031.7725

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.875 C1 C2 H8 112.416
C1 C2 H9 112.416 C2 C1 H5 109.810
C2 C1 H6 110.688 C2 C1 H7 110.688
C2 O3 O4 110.860 O3 C2 H8 107.889
O3 C2 H9 107.889 H5 C1 H6 108.502
H5 C1 H7 108.502 H6 C1 H7 108.590
H8 C2 H9 109.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability