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

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-229.016292
Energy at 298.15K-229.022317
HF Energy-228.303462
Nuclear repulsion energy123.812437
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 QCISD/6-311G**
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' 3148 3004 20.16      
2 A' 3092 2950 14.94      
3 A' 3068 2927 12.27      
4 A' 1536 1465 3.94      
5 A' 1522 1452 1.64      
6 A' 1452 1386 23.21      
7 A' 1408 1343 8.01      
8 A' 1170 1116 7.86      
9 A' 1148 1095 19.44      
10 A' 1064 1015 12.86      
11 A' 885 844 3.50      
12 A' 516 493 8.37      
13 A' 314 299 1.64      
14 A" 3160 3015 39.40      
15 A" 3138 2994 0.87      
16 A" 1505 1436 5.59      
17 A" 1304 1244 0.74      
18 A" 1184 1130 5.18      
19 A" 818 781 0.29      
20 A" 235 224 0.50      
21 A" 89 85 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 15876.9 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 15148.2 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 QCISD/6-311G**
ABC
1.11174 0.14776 0.13723

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.500 0.905 0.000
C2 0.000 0.670 0.000
O3 -0.206 -0.765 0.000
O4 -1.499 -1.048 0.000
H5 1.701 1.981 0.000
H6 1.959 0.463 0.890
H7 1.959 0.463 -0.890
H8 -0.487 1.074 -0.893
H9 -0.487 1.074 0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51792.38733.57861.09511.09441.09442.18422.1842
C21.51791.44992.27982.14802.16152.16151.09411.0941
O32.38731.44991.32383.34402.64372.64372.06382.0638
O43.57862.27981.32384.40663.87753.87752.51472.5147
H51.09512.14803.34404.40661.77831.77832.53122.5312
H61.09442.16152.64373.87751.77831.77963.08732.5207
H71.09442.16152.64373.87751.77831.77962.52073.0873
H82.18421.09412.06382.51472.53123.08732.52071.7853
H92.18421.09412.06382.51472.53122.52073.08731.7853

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 107.080 C1 C2 H8 112.473
C1 C2 H9 112.473 C2 C1 H5 109.518
C2 C1 H6 110.621 C2 C1 H7 110.621
C2 O3 O4 110.477 O3 C2 H8 107.606
O3 C2 H9 107.606 H5 C1 H6 108.619
H5 C1 H7 108.619 H6 C1 H7 108.792
H8 C2 H9 109.346
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability