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Experimental data for C3H6O (Oxetane)

22 02 02 11 45
Other names
1,3-Epoxypropane; 1,3-Propylene oxide; 1,3-Trimethylene oxide; α,γ-Propane oxide; Cyclooxabutane; Oxacyclobutane; Oxetan; Oxetane; Propane, 1,3-epoxy-; Trimethylenoxid; Trimethylene oxide; alpha,gamma-Propane oxide;
INChI INChIKey SMILES IUPAC name
InChI=1S/C3H6O/c1-2-4-3-1/h1-3H2 AHHWIHXENZJRFG-UHFFFAOYSA-N O1CCC1 Oxetane
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
Hfg(298.15K) enthalpy of formation -80.50 0.60 kJ mol-1 1992Dor:9
Hfg(0K) enthalpy of formation -60.47 0.60 kJ mol-1 1992Dor:9
Entropy (298.15K) entropy 271.43   J K-1 mol-1 1992Dor:9
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 12.88   kJ mol-1 1992Dor:9
Heat Capacity (298.15K) heat capacity 61.54 2.00 J K-1 mol-1 1992Dor:9
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
1 A1 2959          
2 A1 2930          
3 A1 1473          
4 A1 1461          
5 A1 1342          
6 A1 1134          
7 A1 1018          
8 A1 908          
9 A2 3000          
10 A2 1283          
11 A2 1185          
12 A2 986          
13 B1 3007          
14 B1 2940          
15 B1 1225          
16 B1 1142          
17 B1 836          
18 B1 90          
19 B2 2966          
20 B2 1508          
21 B2 1458          
22 B2 1363          
23 B2 1228          
24 B2 936          

vibrational zero-point energy: 19188.9 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C3H6O (Oxetane).
Gas-phase IR spectra can be found in the NIST Chemistry Webbook here.
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.40178 0.39140 0.22451 1966Herzberg

Calculated rotational constants for C3H6O (Oxetane).
Product of moments of inertia moments of inertia
135687.7amu3Å6   6.21309978714375E-115gm3 cm6
Geometric Data
picture of Oxetane

Point Group


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
rCC 1.543   1 5 1976Hellwege(II/7)
rCO 1.446   1 10 1976Hellwege(II/7)
rCH 1.093   1 6 1976Hellwege(II/7)
rCH 1.094   3 5 1976Hellwege(II/7)
aCOC 91.8 1 10 2 1976Hellwege(II/7)
aCCC 84.6 1 5 2 1976Hellwege(II/7)
aHCH 110 6 1 7 1976Hellwege(II/7)
aHCH 110.8 3 5 4 1976Hellwege(II/7)
aCCO 91.8 5 1 10 1976Hellwege(II/7)
aHCC 114.83 1 5 3 1976Hellwege(II/7) by symmetry

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C3H6O (Oxetane).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-C 2
C-O 2
H-C 6

Connectivity
Atom 1 Atom 2
O1 C3
O1 C4
C2 C3
C2 C4
C2 H5
C2 H6
C3 H7
C3 H8
C4 H9
C4 H10
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.650 0.010 9.679   webbook

Proton Affinity (kJ mol-1)
Proton Affinity unc. Product reference comment
801.3   CH3COHCH3+ webbook  
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       1.940 NSRDS-NBS10 MW C2v 1 2
1 2 1A' Cs False           Cs 2 3
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 C3H6O (Oxetane).
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 2.300 -4.900 2.600 1971Fly/Ben:225 Qxx=-4.9+-0.5, Qyy=2.3+-0.7, Qzz=2.6+-1.0 C2v 1 2
1 2 1A' Cs False       Cs 2 3

Calculated electric quadrupole moments for C3H6O (Oxetane).

References
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squib reference DOI
1966Herzberg Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966  
1971Fly/Ben:225 WH Flygare, RC Benson "The molecular Zeeman effect in diamagnetic molecules and the determination of molecular magnetic moments (g values), magnetic susceptibilities, and molecular quadrupole moments" Mol. Phys. 1971, 20 (2), 225-250 10.1080/00268977100100221
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1992Dor:9 OV Dorofeeva "Ideal Gas thermodynamic properties of oxygen heterocyclic compounds Part 1. Three-membered, four-membered, and five-membered rings" Thermochimica Acta 194 (1992) 9-46 10.1016/0040-6031(92)80002-E
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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