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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-228.884821
Energy at 298.15K-228.890840
HF Energy-228.249756
Nuclear repulsion energy124.311510
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 MP2=FULL/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' 3249 3036 11.93      
2 A' 3166 2958 14.26      
3 A' 3149 2942 7.96      
4 A' 1571 1468 2.60      
5 A' 1561 1458 2.14      
6 A' 1476 1379 14.91      
7 A' 1422 1329 5.13      
8 A' 1275 1191 135.38      
9 A' 1179 1101 8.22      
10 A' 1073 1003 13.77      
11 A' 884 826 3.90      
12 A' 519 485 10.32      
13 A' 315 294 1.33      
14 A" 3260 3046 22.98      
15 A" 3235 3023 6.10      
16 A" 1548 1446 5.55      
17 A" 1315 1229 0.03      
18 A" 1193 1114 4.46      
19 A" 829 775 0.69      
20 A" 247 230 0.46      
21 A" 71 67 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 16267.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 15200.4 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 MP2=FULL/6-31G**
ABC
1.11262 0.14908 0.13828

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.491 0.900 0.000
C2 0.000 0.678 0.000
O3 -0.208 -0.766 0.000
O4 -1.488 -1.048 0.000
H5 1.703 1.967 0.000
H6 1.944 0.458 0.883
H7 1.944 0.458 -0.883
H8 -0.486 1.077 -0.887
H9 -0.486 1.077 0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50772.37913.55981.08741.08641.08642.17412.1741
C21.50771.45882.27932.13512.14652.14651.08721.0872
O32.37911.45881.31153.33372.62782.62782.06402.0640
O43.55982.27931.31154.38983.85063.85062.51172.5117
H51.08742.13513.33374.38981.76481.76482.52332.5233
H61.08642.14652.62783.85061.76481.76643.06932.5072
H71.08642.14652.62783.85061.76481.76642.50723.0693
H82.17411.08722.06402.51172.52333.06932.50721.7745
H92.17411.08722.06402.51172.52332.50723.06931.7745

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 106.632 C1 C2 H8 112.822
C1 C2 H9 112.822 C2 C1 H5 109.666
C2 C1 H6 110.625 C2 C1 H7 110.625
C2 O3 O4 110.613 O3 C2 H8 107.430
O3 C2 H9 107.430 H5 C1 H6 108.552
H5 C1 H7 108.552 H6 C1 H7 108.764
H8 C2 H9 109.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability