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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-225.533715
Energy at 298.15K-225.539540
HF Energy-225.364726
Nuclear repulsion energy120.802163
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/STO-3G
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' 3564 3168 0.76      
2 A' 3383 3007 0.86      
3 A' 3363 2989 4.47      
4 A' 1731 1539 0.85      
5 A' 1705 1515 1.47      
6 A' 1613 1434 0.59      
7 A' 1522 1353 18.33      
8 A' 1405 1249 45.68      
9 A' 1265 1124 1.56      
10 A' 1160 1031 0.20      
11 A' 987 877 1.09      
12 A' 520 462 1.91      
13 A' 307 273 0.30      
14 A" 3567 3171 1.20      
15 A" 3476 3090 7.17      
16 A" 1718 1527 1.36      
17 A" 1398 1242 0.01      
18 A" 1236 1099 6.51      
19 A" 882 784 0.36      
20 A" 206 183 0.31      
21 A" 82 73 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 17544.0 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 15594.9 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/STO-3G
ABC
1.04530 0.14143 0.13087

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.534 0.933 0.000
C2 0.000 0.669 0.000
O3 -0.198 -0.812 0.000
O4 -1.549 -1.043 0.000
H5 1.728 2.019 0.000
H6 2.000 0.490 0.896
H7 2.000 0.490 -0.896
H8 -0.478 1.115 -0.901
H9 -0.478 1.115 0.901

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.55672.45863.66161.10301.10281.10282.21222.2122
C21.55671.49382.30822.19282.19902.19901.11341.1134
O32.45861.49381.37033.42372.70752.70752.14582.1458
O43.66162.30821.37034.48443.96843.96842.57212.5721
H51.10302.19283.42374.48441.79281.79282.54832.5483
H61.10282.19902.70753.96841.79281.79183.12442.5561
H71.10282.19902.70753.96841.79281.79182.55613.1244
H82.21221.11342.14582.57212.54833.12442.55611.8017
H92.21221.11342.14582.57212.54832.55613.12441.8017

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 107.393 C1 C2 H8 110.798
C1 C2 H9 110.798 C2 C1 H5 109.892
C2 C1 H6 110.392 C2 C1 H7 110.392
C2 O3 O4 107.318 O3 C2 H8 109.924
O3 C2 H9 109.924 H5 C1 H6 108.731
H5 C1 H7 108.731 H6 C1 H7 108.657
H8 C2 H9 108.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability