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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-228.843987
Energy at 298.15K-228.850005
HF Energy-228.241552
Nuclear repulsion energy124.147511
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' 3217 3031 10.86      
2 A' 3145 2963 12.31      
3 A' 3125 2944 7.03      
4 A' 1572 1481 3.94      
5 A' 1562 1471 2.71      
6 A' 1480 1394 16.96      
7 A' 1424 1342 4.16      
8 A' 1275 1201 132.42      
9 A' 1181 1113 9.47      
10 A' 1073 1011 14.83      
11 A' 884 833 3.71      
12 A' 520 490 11.06      
13 A' 317 298 1.25      
14 A" 3230 3043 22.50      
15 A" 3209 3023 3.59      
16 A" 1550 1461 7.03      
17 A" 1316 1240 0.00      
18 A" 1197 1127 4.54      
19 A" 832 784 1.14      
20 A" 246 232 0.43      
21 A" 75 70 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 16213.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 15276.0 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
1.10625 0.14889 0.13808

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 1.494 0.898 0.000
C2 0.000 0.681 0.000
O3 -0.209 -0.765 0.000
O4 -1.490 -1.047 0.000
H5 1.711 1.968 0.000
H6 1.947 0.452 0.887
H7 1.947 0.452 -0.887
H8 -0.488 1.080 -0.891
H9 -0.488 1.080 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50932.38013.56111.09271.09151.09152.18062.1806
C21.50931.46092.28122.14152.15212.15211.09171.0917
O32.38011.46091.31113.34072.63062.63062.06792.0679
O43.56112.28121.31114.39743.85333.85332.51402.5140
H51.09272.14153.34074.39741.77271.77272.53382.5338
H61.09152.15212.63063.85331.77271.77423.08032.5152
H71.09152.15212.63063.85331.77271.77422.51523.0803
H82.18061.09172.06792.51402.53383.08032.51521.7823
H92.18061.09172.06792.51402.53382.51523.08031.7823

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 106.501 C1 C2 H8 112.951
C1 C2 H9 112.951 C2 C1 H5 109.741
C2 C1 H6 110.654 C2 C1 H7 110.654
C2 O3 O4 110.643 O3 C2 H8 107.327
O3 C2 H9 107.327 H5 C1 H6 108.503
H5 C1 H7 108.503 H6 C1 H7 108.727
H8 C2 H9 109.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability