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

using model chemistry: ROMP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROMP2/6-31+G**
 hartrees
Energy at 0K-228.883256
Energy at 298.15K-228.889201
HF Energy-228.248785
Nuclear repulsion energy124.070398
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 ROMP2/6-31+G**
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' 3230 3230        
2 A' 3162 3162        
3 A' 3134 3134        
4 A' 1554 1554        
5 A' 1543 1543        
6 A' 1464 1464        
7 A' 1414 1414        
8 A' 1208 1208        
9 A' 1167 1167        
10 A' 1060 1060        
11 A' 869 869        
12 A' 516 516        
13 A' 313 313        
14 A" 3250 3250        
15 A" 3229 3229        
16 A" 1530 1530        
17 A" 1302 1302        
18 A" 1179 1179        
19 A" 821 821        
20 A" 225 225        
21 A" 58 58        

Unscaled Zero Point Vibrational Energy (zpe) 16113.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16113.2 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 ROMP2/6-31+G**
ABC
1.10839 0.14833 0.13762

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.903 0.000
C2 0.000 0.685 0.000
O3 -0.210 -0.766 0.000
O4 -1.488 -1.056 0.000
H5 1.702 1.972 0.000
H6 1.947 0.462 0.886
H7 1.947 0.462 -0.886
H8 -0.487 1.077 -0.891
H9 -0.487 1.077 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50932.38493.56711.08961.08821.08822.17852.1785
C21.50931.46662.29032.13402.15092.15091.08821.0882
O32.38491.46661.31003.34012.63602.63602.06572.0657
O43.56712.29031.31004.39843.85873.85872.51892.5189
H51.08962.13403.34014.39841.76751.76752.52742.5274
H61.08822.15092.63603.85871.76751.77113.07562.5106
H71.08822.15092.63603.85871.76751.77112.51063.0756
H82.17851.08822.06572.51892.52743.07562.51061.7820
H92.17851.08822.06572.51892.52742.51063.07561.7820

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 106.520 C1 C2 H8 113.008
C1 C2 H9 113.008 C2 C1 H5 109.325
C2 C1 H6 110.759 C2 C1 H7 110.759
C2 O3 O4 111.026 O3 C2 H8 106.977
O3 C2 H9 106.977 H5 C1 H6 108.501
H5 C1 H7 108.501 H6 C1 H7 108.935
H8 C2 H9 109.927
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability