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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-188.897037
Energy at 298.15K-188.899786
HF Energy-188.536805
Nuclear repulsion energy68.702155
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3134 3018 30.15      
2 A1 1536 1479 0.38      
3 A1 1101 1060 8.54      
4 A1 681 656 0.46      
5 A2 964 929 0.00      
6 B1 3268 3147 30.02      
7 B1 1130 1089 4.16      
8 B2 1251 1204 0.28      
9 B2 852 820 35.53      

Unscaled Zero Point Vibrational Energy (zpe) 6957.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 6701.1 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/LANL2DZ
ABC
0.87554 0.72408 0.43247

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
H2 0.939 0.000 1.339
H3 -0.939 0.000 1.339
O4 0.000 0.820 -0.459
O5 0.000 -0.820 -0.459

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09351.09351.48461.4846
H21.09351.87842.18782.1878
H31.09351.87842.18782.1878
O41.48462.18782.18781.6398
O51.48462.18782.18781.6398

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.477 C1 O5 O4 56.477
H2 C1 H3 118.374 H2 C1 O4 115.280
H2 C1 O5 115.280 H3 C1 O4 115.280
H3 C1 O5 115.280 O4 C1 O5 67.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability