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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-228.586528
Energy at 298.15K-228.592407
HF Energy-228.200901
Nuclear repulsion energy120.175240
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/LANL2DZ
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' 3144 3028 27.74      
2 A' 3083 2969 23.36      
3 A' 3040 2928 18.08      
4 A' 1545 1488 7.82      
5 A' 1540 1484 3.00      
6 A' 1466 1412 8.02      
7 A' 1426 1373 25.06      
8 A' 1364 1313 163.61      
9 A' 1145 1103 5.38      
10 A' 1024 986 16.31      
11 A' 809 779 7.85      
12 A' 477 459 9.69      
13 A' 293 282 1.32      
14 A" 3173 3056 52.12      
15 A" 3150 3034 1.36      
16 A" 1527 1471 8.30      
17 A" 1290 1242 0.20      
18 A" 1168 1125 5.55      
19 A" 840 809 1.89      
20 A" 219 211 0.67      
21 A" 69 66 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 15895.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 15308.8 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/LANL2DZ
ABC
1.04555 0.13904 0.12885

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.525 0.945 0.000
C2 0.000 0.723 0.000
O3 -0.198 -0.790 0.000
O4 -1.534 -1.117 0.000
H5 1.734 2.029 0.000
H6 1.983 0.497 0.897
H7 1.983 0.497 -0.897
H8 -0.495 1.110 -0.904
H9 -0.495 1.110 0.904

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.54072.44443.68831.10441.10211.10212.21922.2192
C21.54071.52512.39502.17112.18812.18811.10121.1012
O32.44441.52511.37533.41732.68662.68662.12452.1245
O43.68832.39501.37534.53603.97223.97222.61782.6178
H51.10442.17113.41734.53601.79241.79242.57552.5755
H61.10212.18812.68663.97221.79241.79343.12432.5532
H71.10212.18812.68663.97221.79241.79342.55323.1243
H82.21921.10122.12452.61782.57553.12432.55321.8080
H92.21921.10122.12452.61782.57552.55323.12431.8080

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 105.750 C1 C2 H8 113.238
C1 C2 H9 113.238 C2 C1 H5 109.225
C2 C1 H6 110.685 C2 C1 H7 110.685
C2 O3 O4 111.219 O3 C2 H8 106.870
O3 C2 H9 106.870 H5 C1 H6 108.646
H5 C1 H7 108.646 H6 C1 H7 108.903
H8 C2 H9 110.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability