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

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-228.894606
Energy at 298.15K-228.900612
HF Energy-228.260366
Nuclear repulsion energy124.245365
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/cc-pVDZ
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' 3212 3053 10.43      
2 A' 3121 2966 14.69      
3 A' 3107 2952 10.24      
4 A' 1513 1438 3.30      
5 A' 1503 1428 1.60      
6 A' 1427 1357 16.82      
7 A' 1382 1314 1.14      
8 A' 1263 1200 133.57      
9 A' 1155 1098 7.81      
10 A' 1072 1019 14.37      
11 A' 874 830 3.08      
12 A' 523 497 10.15      
13 A' 311 295 1.45      
14 A" 3218 3058 20.77      
15 A" 3190 3032 7.75      
16 A" 1485 1411 6.49      
17 A" 1284 1221 0.30      
18 A" 1163 1105 5.07      
19 A" 810 769 1.04      
20 A" 242 230 0.45      
21 A" 75 71 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 15964.2 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 15172.4 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/cc-pVDZ
ABC
1.10702 0.14905 0.13833

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.498 0.893 0.000
C2 0.000 0.674 0.000
O3 -0.217 -0.764 0.000
O4 -1.488 -1.041 0.000
H5 1.715 1.972 0.000
H6 1.956 0.444 0.893
H7 1.956 0.444 -0.893
H8 -0.488 1.085 -0.897
H9 -0.488 1.085 0.897

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51362.38463.55731.10031.10001.10002.18712.1871
C21.51361.45462.27052.15092.16272.16271.10061.1006
O32.38461.45461.30093.34942.64172.64172.07292.0729
O43.55732.27051.30094.39743.85533.85532.51472.5147
H51.10032.15093.34944.39741.78621.78622.53872.5387
H61.10002.16272.64173.85531.78621.78653.09662.5266
H71.10002.16272.64173.85531.78621.78652.52663.0966
H82.18711.10062.07292.51472.53873.09662.52661.7941
H92.18711.10062.07292.51472.53872.52663.09661.7941

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 106.889 C1 C2 H8 112.614
C1 C2 H9 112.614 C2 C1 H5 109.730
C2 C1 H6 110.687 C2 C1 H7 110.687
C2 O3 O4 110.847 O3 C2 H8 107.634
O3 C2 H9 107.634 H5 C1 H6 108.543
H5 C1 H7 108.543 H6 C1 H7 108.590
H8 C2 H9 109.191
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability