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Experimental data for C4H8O2 (1,4-Dioxane)

22 02 02 11 45
Other names
1,4-Diethylene dioxide; 1,4-Dioxacyclohexane; 1,4-Dioxan; 1,4-Dioxane; 1,4-Dioxin, tetrahydro-; Di(ethylene oxide); Diethylene dioxide; Diethylene ether; Diokan; Dioksan; Diossano-1,4; Dioxaan-1,4; Dioxan; Dioxan-1,4; Dioxane; Dioxane-1,4; Dioxanne; Dioxyethylene ether; Glycol ethylene ether; p-Dioxan; p-Dioxane; p-Dioxin, tetrahydro-; Tetrahydro-1,4-dioxin; Tetrahydro-p-dioxin; 1,4Dioxane;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2 RYHBNJHYFVUHQT-UHFFFAOYSA-N O1CCOCC1 1,4-Dioxane
State Conformation
1Ag C2H
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 -315.30 0.80 kJ mol-1 webbook
Hfg(0K) enthalpy of formation   0.80 kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
Heat Capacity (298.15K) heat capacity 92.10   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
1 Ag 2968   Shim      
2 Ag 2856   Shim      
3 Ag 1444   Shim      
4 Ag 1397   Shim      
5 Ag 1305   Shim      
6 Ag 1128   Shim      
7 Ag 1015   Shim      
8 Ag 837   Shim      
9 Ag 435   Shim      
10 Ag 424   Shim      
11 Au 2970   Shim      
12 Au 2863   Shim      
13 Au 1449   Shim      
14 Au 1369   Shim      
15 Au 1256   Shim      
16 Au 1136   Shim      
17 Au 1086   Shim      
18 Au 881   Shim      
19 Au 288   Shim      
20 Bg 2968   Shim      
21 Bg 2856   Shim      
22 Bg 1459   Shim      
23 Bg 1335   Shim      
24 Bg 1217   Shim      
25 Bg 1110   Shim      
26 Bg 853   Shim      
27 Bg 490   Shim      
28 Bu 2970   Shim      
29 Bu 2863   Shim      
30 Bu 1457   Shim      
31 Bu 1378   Shim      
32 Bu 1291   Shim      
33 Bu 1052   Shim      
34 Bu 889   Shim      
35 Bu 610   Shim      
36 Bu 274   Shim      

vibrational zero-point energy: 26089.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C4H8O2 (1,4-Dioxane).
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
       

Calculated rotational constants for C4H8O2 (1,4-Dioxane).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of 1,4-Dioxane

Point Group C2h


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

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C4H8O2 (1,4-Dioxane).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 8
C-C 2
C-O 4

Connectivity
Atom 1 Atom 2
C1 C3
C1 O6
C1 H7
C1 H12
C2 C4
C2 O6
C2 H8
C2 H11
C3 O5
C3 H10
C3 H14
C4 O5
C4 H9
C4 H13
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1Ag

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.190 0.010 9.400   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 1Ag C2h True           C2h 0 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 C4H8O2 (1,4-Dioxane).
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 1Ag C2h True       C2h 0 3

Calculated electric quadrupole moments for C4H8O2 (1,4-Dioxane).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
8.430   1998Gus/Rui:163

Calculated electric dipole polarizability for C4H8O2 (1,4-Dioxane).

References
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squib reference DOI
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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