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			{{Use dmy dates|date=January 2023}}
	{{Chembox		{{Chembox
			| Verifiedfields = changed
⚫	| verifiedrevid = 425793992
			| Watchedfields = changed
		⚫	| verifiedrevid = 433035864
	| ImageFile = Cyclic-ozone-3D-balls.png		| ImageFile = Cyclic-ozone-3D-balls.png
	| ImageFile_Ref = {{chemboximage|correct|??}}		| ImageFile_Ref = {{chemboximage|correct|??}}
	| ImageSize = 121		| ImageSize = 100
	| ImageName = Ball and stick model of cyclic ozone		| ImageName = Ball and stick model of cyclic ozone
			| SystematicName = Trioxirane<ref name=pubchem>{{Cite web|title=CID 16206854 - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=16206854|work=PubChem Compound|publisher=National Center for Biotechnology Information|access-date = 21 October 2011|location=USA|date=11 July 2007|at=Identification and Related Records}}</ref>
	| IUPACName = Cyclic ozone
			| OtherNames = {{ubl|Cyclotrioxidane|Trioxacyclopropane<ref name=pubchem></ref>}}
	| SystematicName = Trioxirane<ref>{{Cite web|title = CID16206854 - PubChem Public Chemical Database|url = http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=16206854|work = The PubChem Project|location = USA|publisher = National Center for Biotechnology Information}}</ref>
	| Section1 = {{Chembox Identifiers		|Section1={{Chembox Identifiers
	| PubChem = 16206854		| CASNo = 153851-84-4
	| PubChem_Ref = {{Pubchemcite|correct|pubchem}}		| CASNo_Ref = {{cascite|correct|CAS}}
			| PubChem = 16206854
	| ChemSpiderID = 13375217		| ChemSpiderID = 13375217
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
	| SMILES = O1OO1
	| StdInChI = 1S/O3/c1-2-3-1		| SMILES = O1OO1
			| StdInChI = 1S/O3/c1-2-3-1
	| StdInChI_Ref = {{stdinchicite|correct|chemspider}}		| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
		⚫	| StdInChIKey = XQOAKYYZMDCSIA-UHFFFAOYSA-N
	| InChI = 1/O3/c1-2-3-1
		⚫	| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
⚫	| StdInChIKey = XQOAKYYZMDCSIA-UHFFFAOYSA-N
⚫	| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
	| InChIKey = XQOAKYYZMDCSIA-UHFFFAOYAK
	}}		}}
	| Section2 = {{Chembox Properties		|Section2={{Chembox Properties
	| O = 3		| O=3
	| ExactMass = 47.984743866 g mol<sup>-1</sup>
	}}		}}
	}}		}}
	'''Cyclic ozone''' is a theoretically predicted form of ]. Like ordinary ozone (O<sub>3</sub>), it would have three ] atoms. It would differ from ordinary ozone how those three oxygen atoms are arranged. In ordinary ozone, the atoms are arranged in a bent line; in cyclic ozone they would form an ].		'''Cyclic ozone''' is a theoretically predicted form of ]. Like ordinary ozone (O<sub>3</sub>), it would have three ] atoms. It would differ from ordinary ozone in how those three oxygen atoms are arranged. In ordinary ozone, the atoms are arranged in a bent line; in cyclic ozone, they would form an ].
	Some of properties of cyclic ozone have been predicted theoretically. It should have more energy than ordinary ozone.<ref>		Some of the properties of cyclic ozone have been predicted theoretically. It should have more energy than ordinary ozone.<ref>
	{{Cite journal | last = Hoffmann | first = Roald | authorlink = Roald Hoffman		{{Cite journal | last = Hoffmann | first = Roald | author-link = Roald Hoffman
	| title = The story of O. The Ring | journal = ]		| title = The story of O. The Ring | journal = ]
	| volume = 92 | issue = 1 | pages = 23–24		| volume = 92 | issue = 1 | pages = 23–24
	| publisher = | location = | date = January–February 2004		| date = January–February 2004
		⚫	| doi = 10.1511/2004.1.23
	| url = http://www.americanscientist.org/issues/pub/the-story-of-o/5
			}}
⚫	| issn = | doi = 10.1511/2004.1.23 | id =
		⚫	</ref>
	| accessdate = 2010-06-05}}
⚫	</ref>
	Evidence has been reported that tiny quantities of cyclic ozone exist at the surface of magnesium oxide crystals in air.<ref>		There is evidence that tiny quantities of cyclic ozone exist at the surface of ] crystals in air.<ref>
	{{Cite journal | last = Plass | first = Richard		{{Cite journal | last = Plass | first = Richard
	| coauthors = Kenneth Egan, Chris Collazo-Davila, Daniel Grozea, Eric Landree,		| author2=Kenneth Egan |author3=Chris Collazo-Davila |author4=Daniel Grozea |author5=Eric Landree |author6=Laurence D. Marks |author7=Marija Gajdardziska-Josifovska
		⚫	| title = Cyclic Ozone Identified in Magnesium Oxide (111) Surface Reconstructions
	Laurence D. Marks, and Marija Gajdardziska-Josifovska
⚫	| title = Cyclic Ozone Identified in Magnesium Oxide (111) Surface Reconstructions
	| journal = ] | volume = 81 | issue = 22 | pages = 4891–4894		| journal = ] | volume = 81 | issue = 22 | pages = 4891–4894
	| publisher = | location =		| date = 30 November 1998
	| date = November 30, 1998
	| url = http://www.numis.northwestern.edu/Research/Articles/1998/98_PRL_Plass.pdf		| url = http://www.numis.northwestern.edu/Research/Articles/1998/98_PRL_Plass.pdf
		⚫	| doi = 10.1103/PhysRevLett.81.4891
	| issn =
		⚫	| access-date = 5 June 2010 | bibcode=1998PhRvL..81.4891P}}
	| doi =
⚫	10.1103/PhysRevLett.81.4891| id =
⚫	| accessdate = 2010-06-05 | bibcode=1998PhRvL..81.4891P}}
	</ref> Cyclic ozone has not been made in bulk, although at least one researcher has attempted to do so using lasers.<ref name="sciencedaily">		</ref> Cyclic ozone has not been made in bulk, although at least one researcher has attempted to do so using lasers.<ref name="sciencedaily">
	{{Cite journal		{{Cite journal
	| title = Temple Researcher Attempting To Create Cyclic Ozone | journal = Science Daily		| title = Temple Researcher Attempting To Create Cyclic Ozone | journal = Science Daily
		⚫	| date = 8 February 2005
	| volume = | issue = | pages = | publisher = | location =
			| url = https://www.sciencedaily.com/releases/2005/02/050205122519.htm| access-date = 5 June 2010}}</ref> Another possibility to stabilize this form of oxygen is to produce it inside confined spaces, e.g., ].<ref name="ReferenceA">{{cite journal|last1=Sabirov|first1=Denis|last2=Igor|first2=Shepelevich|title=Information entropy of oxygen allotropes. A still open discussion about the closed form of ozone|journal=Computational and Theoretical Chemistry|date=2015|volume=1073|issue=1|pages=61–66|doi=10.1016/j.comptc.2015.09.016}}</ref>
⚫	| date = February 8, 2005
	| url = http://www.sciencedaily.com/releases/2005/02/050205122519.htm
	| issn = | doi = | id = | accessdate = 2010-06-05}}</ref>
	It has been speculated that, if cyclic ozone could be made in bulk, and it proved to have good ] properties,{{Clarify|date = April 2011}} it could be added to liquid oxygen to improve the ] of rocket fuel.<ref name="sciencedaily"/>		It has been speculated that, if cyclic ozone could be made in bulk, and if it proved to have good ] properties, it could be added to liquid oxygen to improve the ] of rocket fuel.<ref name="sciencedaily"/>
			Currently, the possibility of cyclic ozone is confirmed within diverse theoretical approaches.<ref name="ReferenceA"/><ref>{{cite journal|last1=Xantheas|first1=Sotiris|last2=Atchity|first2=Gregory|last3=Elbert|first3=Stephen|last4=Ruedenberg|first4=Klaus|title=Potential energy surfaces of ozone. I|journal=J. Chem. Phys.|date=1991|volume=94|issue=12|page=8054|doi=10.1063/1.460140|bibcode=1991JChPh..94.8054X|url=https://zenodo.org/record/1232932}}</ref><ref>{{cite journal|last1=Lee|first1=Timothy|title=On the energy separation between the open and cyclic forms of ozone|journal=Chemical Physics Letters|date=1990|volume=169|issue=6|pages=529–533|doi=10.1016/0009-2614(90)85642-P|bibcode=1990CPL...169..529L}}</ref>
⚫	== References ==
		⚫	==References==
	{{Reflist}}		{{Reflist}}
			==External links==
	{{Inorganic-compound-stub}}
			*{{Commonscatinline}}
			{{oxygenallotropes}}
⚫	]
	]
			]
	]
		⚫	]
			]
			]
			]