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Experimental data for CH2O2 (Dioxirane)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/CH2O2/c1-2-3-1/h1H2 ASQQEOXYFGEFKQ-UHFFFAOYSA-N O1OC1
State Conformation
1A1 C2V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Heat Capacity (298.15K) heat capacity 43.90 3.00 J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for CH2O2 (Dioxirane).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.96656 0.83579 0.49300 1978Sue/Lov:5117

Calculated rotational constants for CH2O2 (Dioxirane).
Product of moments of inertia moments of inertia
12028.52amu3Å6   5.50782720216562E-116gm3 cm6
Geometric Data
picture of Dioxirane

Point Group C2v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCH 1.090 0.002 1 2 1978Sue/Lov:5117 rs
rCO 1.388 0.004 1 4 1978Sue/Lov:5117 rs
rOO 1.516 0.003 4 5 1978Sue/Lov:5117 rs
aHCH 117.32 0.2 2 1 3 1978Sue/Lov:5117
aOCO 66.19 0.18 4 1 5 1978Sue/Lov:5117
aCOO 56.91 0.18 1 4 5 1978Sue/Lov:5117 by symmetry
aHCO 115.83 0.2 2 1 4 1978Sue/Lov:5117 from symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.0000 0.7278
H2 0.9312 0.0000 1.2949
H3 -0.9312 0.0000 1.2949
O4 0.0000 0.7579 -0.4348
O5 0.0000 -0.7579 -0.4348

Atom - Atom Distances bond lengths
Distances in Å
  C1 H2 H3 O4 O5
C1   1.09031.09031.38781.3878
H2 1.0903   1.86252.10562.1056
H3 1.09031.8625   2.10562.1056
O4 1.38782.10562.1056   1.5158
O5 1.38782.10562.10561.5158  

Calculated geometries for CH2O2 (Dioxirane).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 O4 O5 56.900 C1 O5 O4 56.900
H2 C1 H3 117.320 H2 C1 O4 115.831
H2 C1 O5 115.831 H3 C1 O4 115.831
H3 C1 O5 115.831 O4 C1 O5 66.200

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 2
C-O 2
O-O 1

Connectivity
Atom 1 Atom 2
C1 H2
C1 H3
C1 O4
C1 O5
O4 O5
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C2v True 0.000 0.000 2.479 2.479 1978Sue/Lov:5117 MW +-0.07 μ0 C2v 1 2
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for CH2O2 (Dioxirane).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C2v True       C2v 1 2

Calculated electric quadrupole moments for CH2O2 (Dioxirane).

References
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squib reference DOI
1978Sue/Lov:5117 RD Suenram, FJ Lovas "Dioxirane. Its Synthesis, Microwave Spectrum, Structure, and Dipole Moment" J. Am. Chem. Soc.100, 5117, 1978 10.1021/ja00484a034
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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