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{{Chembox
'''1,2-Dioxin''' adalah [[senyawa]] [[heterosiklik]], [[Senyawa organik|organik]], [[:en:Antiaromaticity|antiaromatik]] dengan [[rumus kimia]] C<sub>4</sub>H<sub>4</sub>O<sub>2</sub>. merupakan [[isomer]] dari [[:en:1,4-dioxin|1,4-dioxin]] (atau ''p''-dioxin).▼
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 477204382
| ImageFile = 1,2-dioxin.svg
| ImageSize = 100
| ImageName = Skeletal formula of 1,2-dioxin
| ImageFileL1 = 1,2-Dioxin-3D-balls 2.png
| ImageFileR1 = 1,2-Dioxin-3D-spacefill.png
| ImageName1 = Ball and stick model of 1,2-dioxin
| SystematicName = 1,2-Dioxine<ref>{{Cite web|title = CID 15559065 - Compound Summary|url = http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=15559065&loc=ec_rcs|work = PubChem Compound|publisher = National Center for Biotechnology Information|accessdate = 7 October 2011|location = USA|date = 12 February 2002|at = Identification and Related Records}}</ref>
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|changed|??}}
| CASNo = 289-87-2
| PubChem = 15559065
| ChemSpiderID = 10606250
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| SMILES = O1OC=CC=C1
| StdInChI = 1S/C4H4O2/c1-2-4-6-5-3-1/h1-4H
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| InChI = 1/C4H4O2/c1-2-4-6-5-3-1/h1-4H
| StdInChIKey = VCZQYTJRWNRPHF-UHFFFAOYSA-N
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| InChIKey = VCZQYTJRWNRPHF-UHFFFAOYAH
}}
|Section2={{Chembox Properties
| C=4 | H=4 | O=2
}}
|Section3={{Chembox Related
| OtherCompounds = [[Dibenzodioxin]]<br />
[[1,4-Dioxin]]
}}
}}
▲'''1,2-Dioxin'''
Mengingat karakteristiknya yang mirip [[peroksida]], 1,2-dioxin sangat tidak stabil dan belum berhasil diisolasi. Bahkan [[derivat]] penggantinya juga sangat labil, misal 1,4-difenil-2,3-benzodioxin.<ref>J. P. Smith, A. K. Schrock, G. B. Schuster: ''Chemiluminescence of organic peroxides. ''</ref> Pada tahun 1990, 3,6-bis(''p''-tolyl)-1,2-dioxin salah diakui sebagai derivat pertama yang stabil.<ref>H. J. Shine, D. C. Zhao: ''Electron transfer to excited doublet states. ''</ref> Akhirnya diketahui bahwa senyawa tersebut bukan derivat dari 1,2-dioxin, tetapi secara termodinamika lebih stabil daripada [[dione]].<ref>E. Block, Z. Shan, R. S. Glass, J. Fabian: ''Revised structure of a purported 1,2-dioxin: a combined experimental and theoretical study'', [[Journal of Organic Chemistry|J. Org. ]]</ref><gallery>▼
▲Mengingat karakteristiknya yang mirip [[peroksida]], 1,2-dioxin sangat tidak stabil dan belum berhasil diisolasi. Bahkan [[derivat]] penggantinya
File:1,4-diphenyl-2,3-benzodioxin.svg|Structure of the transient 1,4-diphenyl- 2,3-benzodioxin▼
File:
▲File:1,4-diphenyl-2,3-benzodioxin.svg|
File:Revised structure 1,2-Dioxin.svg|Dioxin (1) dan bentuk dione (2)
</gallery>
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[[Kategori:Dioxin]]
[[Kategori:Senyawa kimia hipotetis]]
[[Kategori:Senyawa antiaromatis]]
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