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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-189.328338
Energy at 298.15K-189.331226
HF Energy-188.678993
Nuclear repulsion energy73.639978
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 CCSD/cc-pVTZ
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 3112 2929 31.82      
2 A1 1582 1489 4.01      
3 A1 1344 1265 41.87      
4 A1 819 771 1.31      
5 A2 1056 994 0.00      
6 B1 3208 3019 26.57      
7 B1 1202 1131 8.84      
8 B2 1297 1221 2.44      
9 B2 947 892 22.50      

Unscaled Zero Point Vibrational Energy (zpe) 7283.7 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 6855.4 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 CCSD/cc-pVTZ
ABC
0.97035 0.86177 0.50325

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.726
H2 0.922 0.000 1.300
H3 -0.922 0.000 1.300
O4 0.000 0.739 -0.435
O5 0.000 -0.739 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08611.08611.37591.3759
H21.08611.84442.09872.0987
H31.08611.84442.09872.0987
O41.37592.09872.09871.4773
O51.37592.09872.09871.4773

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.532 C1 O5 O4 57.532
H2 C1 H3 116.228 H2 C1 O4 116.466
H2 C1 O5 116.466 H3 C1 O4 116.466
H3 C1 O5 116.466 O4 C1 O5 64.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability