1,4-Dioxane
- Formula: C4H8O2
- Molecular weight: 88.1051
- IUPAC Standard InChIKey: RYHBNJHYFVUHQT-UHFFFAOYSA-N
- CAS Registry Number: 123-91-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: p-Dioxane; p-Dioxan; Di(ethylene oxide); Diethylene dioxide; Diethylene ether; Dioxan; Dioxane; Dioxyethylene ether; 1,4-Diethylene dioxide; 1,4-Dioxan; 1,4-Dioxacyclohexane; Glycol ethylene ether; Tetrahydro-p-dioxin; Diokan; Dioksan; Diossano-1,4; Dioxaan-1,4; Dioxan-1,4; Dioxane-1,4; Dioxanne; NCI-C03689; Tetrahydro-1,4-dioxin; p-Dioxin, tetrahydro-; Rcra waste number U108; UN 1165; 1,4-Dioxin, tetrahydro-; 1,4-Diethyleneoxide; Glycol ethylene ether 8; NE 220; NSC 8728
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Vibrational and/or electronic energy levels
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: C2h Symmetry Number σ = 2
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
ag | 1 | CH2 a-str | 2968 | C | ia | 2968 S p | liq. | |||
ag | 2 | CH2 s-str | 2856 | C | ia | 2856 S p | liq. | |||
ag | 3 | CH2 scis | 1444 | C | ia | 1444 M p | liq. | |||
ag | 4 | CH2 wag | 1397 | C | ia | 1397 W p | liq. | |||
ag | 5 | CH2 twist | 1305 | C | ia | 1305 S p | liq. | |||
ag | 6 | CH2 rock | 1128 | C | ia | 1128 M p | liq. | |||
ag | 7 | CC str | 1015 | C | ia | 1015 S p | liq. | |||
ag | 8 | CO str | 837 | C | ia | 837 VS p | liq. | |||
ag | 9 | OCC deform | 435 | C | ia | 435 M | liq. | |||
ag | 10 | COC deform | 424 | C | ia | 424 M p | liq. | |||
au | 11 | CH2 a-str | 2970 | C | 2970 M | gas | ia | |||
au | 12 | CH2 s-str | 2863 | C | 2863 VS | gas | ia | |||
au | 13 | CH2 scis | 1449 | C | 1449 S | gas | ia | |||
au | 14 | CH2 wag | 1369 | C | 1369 S | gas | ia | |||
au | 15 | CH2 twist | 1256 | C | 1256 S | gas | ia | |||
au | 16 | CO str | 1136 | C | 1136 VS | gas | ia | |||
au | 17 | CH2 rock | 1086 | C | 1086 S | gas | ia | |||
au | 18 | CC str | 881 | C | 881 S | gas | ia | |||
au | 19 | OCC deform | 288 | C | 288 W sh | gas | ia | |||
bg | 20 | CH2 a-str | 2968 | C | ia | 2968 S p | liq. | SF(ν1) | ||
bg | 21 | CH2 s-str | 2856 | C | ia | 2856 S p | liq. | SF(ν2) | ||
bg | 22 | CH2 scis | 1459 | C | ia | 1459 M dp | liq. | |||
bg | 23 | CH2 wag | 1335 | C | ia | 1335 W | liq. | |||
bg | 24 | CH2 twist | 1217 | C | ia | 1217 M dp | liq. | |||
bg | 25 | CO str | 1110 | C | ia | 1110 M dp | liq. | |||
bg | 26 | CH2 rock | 853 | C | ia | 853 M sh dp | liq. | |||
bg | 27 | OCC deform | 490 | C | ia | 490 M dp | liq. | |||
bu | 28 | CH2 a-str | 2970 | C | 2970 M | gas | ia | SF(ν11) | ||
bu | 29 | CH2 a-str | 2863 | C | 2863 VS | gas | ia | SF(ν12) | ||
bu | 30 | CH2 scis | 1457 | C | 1457 S | gas | ia | |||
bu | 31 | CH2 wag | 1378 | C | 1378 M | gas | ia | |||
bu | 32 | CH2 twist | 1291 | C | 1291 S | gas | ia | |||
bu | 33 | CH2 rock | 1052 | C | 1052 S | gas | ia | |||
bu | 34 | CO str | 889 | C | 889 S | gas | ia | |||
bu | 35 | OCC deform | 610 | C | 610 S | gas | ia | |||
bu | 36 | COC deform | 274 | C | 274 S | gas | ia | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
sh | Shoulder |
p | Polarized |
dp | Depolarized |
SF | Calculation shows that the frequency approximately equals that of the vibration indicated in the parentheses. |
C | 3~6 cm-1 uncertainty |
References
Go To: Top, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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