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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-228.559328
Energy at 298.15K-228.565264
HF Energy-228.148311
Nuclear repulsion energy121.025009
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
4/u)
Dep P Dep U
1 A' 3165 3007 17.48      
2 A' 3107 2952 12.74      
3 A' 3079 2925 10.69      
4 A' 1580 1502 3.49      
5 A' 1571 1493 4.98      
6 A' 1494 1419 9.47      
7 A' 1432 1360 4.10      
8 A' 1291 1226 170.93      
9 A' 1167 1109 5.06      
10 A' 1044 992 13.19      
11 A' 820 779 7.17      
12 A' 489 465 9.62      
13 A' 301 286 1.09      
14 A" 3188 3028 36.49      
15 A" 3166 3008 0.97      
16 A" 1560 1482 6.92      
17 A" 1318 1253 0.14      
18 A" 1186 1127 5.10      
19 A" 848 805 1.23      
20 A" 233 221 0.72      
21 A" 66 63 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 16051.5 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 15250.5 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 MP2=FULL/6-31G
ABC
1.06175 0.14117 0.13083

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 1.508 0.943 0.000
C2 0.000 0.715 0.000
O3 -0.191 -0.784 0.000
O4 -1.522 -1.111 0.000
H5 1.720 2.021 0.000
H6 1.965 0.497 0.891
H7 1.965 0.497 -0.891
H8 -0.495 1.103 -0.896
H9 -0.495 1.103 0.896

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.52512.42273.66081.09841.09631.09632.20052.2005
C21.52511.51082.37722.15952.16882.16881.09541.0954
O32.42271.51081.37063.39392.66172.66172.11132.1113
O43.66082.37721.37064.50773.94243.94242.60032.6003
H51.09842.15953.39394.50771.78221.78222.55982.5598
H61.09632.16882.66173.94241.78221.78173.10122.5343
H71.09632.16882.66173.94241.78221.78172.53433.1012
H82.20051.09542.11132.60032.55983.10122.53431.7929
H92.20051.09542.11132.60032.55982.53433.10121.7929

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 105.882 C1 C2 H8 113.205
C1 C2 H9 113.205 C2 C1 H5 109.732
C2 C1 H6 110.587 C2 C1 H7 110.587
C2 O3 O4 111.084 O3 C2 H8 107.132
O3 C2 H9 107.132 H5 C1 H6 108.591
H5 C1 H7 108.591 H6 C1 H7 108.698
H8 C2 H9 109.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability