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All results from a given calculation for CH3OOH (Methyl peroxide)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-190.762425
Energy at 298.15K-190.757185
HF Energy-190.867842
Nuclear repulsion energy81.137303
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 B3LYP/6-31G(2df,p)
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 3750 3619 25.55      
2 A 3112 3003 18.04      
3 A 3072 2965 46.20      
4 A 3004 2899 38.80      
5 A 1513 1460 9.62      
6 A 1462 1411 4.49      
7 A 1451 1400 2.07      
8 A 1387 1338 46.24      
9 A 1214 1172 5.32      
10 A 1176 1135 2.24      
11 A 1049 1012 16.13      
12 A 897 865 15.97      
13 A 451 435 5.57      
14 A 255 246 12.82      
15 A 201 194 96.90      

Unscaled Zero Point Vibrational Energy (zpe) 11995.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 11576.0 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 B3LYP/6-31G(2df,p)
ABC
1.44142 0.35027 0.30597

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.121 -0.226 0.019
O2 -0.018 0.609 -0.015
O3 -1.165 -0.265 -0.106
H4 1.973 0.462 0.034
H5 1.140 -0.855 0.919
H6 1.178 -0.862 -0.872
H7 -1.553 -0.141 0.773

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41272.29011.09471.09821.09622.7796
O21.41271.44541.99632.08702.08091.8815
O32.29011.44543.22392.59082.53690.9680
H41.09471.99633.22391.79171.79033.6522
H51.09822.08702.59081.79171.79152.7898
H61.09622.08092.53691.79031.79153.2687
H72.77961.88150.96803.65222.78983.2687

picture of Methyl peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 107.074 O2 C1 H4 105.029
O2 C1 H5 111.896 O2 C1 H6 111.528
O2 O3 H7 101.776 H4 C1 H5 109.585
H4 C1 H6 109.458 H5 C1 H6 109.247
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability