環臭氧

環臭氧是一種假設的氧的同素異形體，其與臭氧分子一樣有三顆氧原子，但並非角型而是成環狀。

環臭氧
系統名 Trioxirane[1]
識別
CAS號	153851-84-4  Y
PubChem	16206854
ChemSpider	13375217
SMILES	O1OO1
InChI	1S/O3/c1-2-3-1
InChIKey	XQOAKYYZMDCSIA-UHFFFAOYSA-N
性質
化學式	O3
摩爾質量	48 g·mol−1
若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

簡介

直到目前，不同的理論研究已確定環臭氧存在的可能。^[2][3][4]另外也有實驗指在1450℃以上在氧化鎂的表面重構中識別出微量環臭氧。^[5]目前它並未能大量製造，而其中一個不成功的嘗試是藉助雷射。^[6]另一個被提出的可能辦法是在一個加以限制的空間內使其穩定，例如富勒烯。^[3]

科學家對其特性有一些預測，如其標準摩爾生成焓比臭氧高130 kJ mol⁻¹，而它生成臭氧的活化能為95 kJ mol⁻¹。^[7]另外又有建議指，若果環臭氧能大量製造，且它較為穩定，便可加入液態氧中以增加火箭燃料的比衝量。^[6]

參考

1. CID 16206854 - Compound Summary. PubChem Compound. USA: National Center for Biotechnology Information. Identification and Related Records. 11 July 2007 [21 October 2011]. （原始內容存檔於2012-10-25）.
2. Xantheas, Sotiris; Atchity, Gregory; Elbert, Stephen; Ruedenberg, Klaus. Potential energy surfaces of ozone. I. J. Chem. Phys. 1991, 94 (12): 8054. Bibcode:1991JChPh..94.8054X. doi:10.1063/1.460140.
3. Sabirov, Denis; Igor, Shepelevich. Information entropy of oxygen allotropes. A still open discussion about the closed form of ozone. Computational and Theoretical Chemistry. 2015, 1073 (1): 61–66. doi:10.1016/j.comptc.2015.09.016.
4. Lee, Timothy. On the energy separation between the open and cyclic forms of ozone. Chemical Physics Letters. 1990, 169 (6): 529–533. Bibcode:1990CPL...169..529L. doi:10.1016/0009-2614(90)85642-P.
5. Plass, Richard; Kenneth Egan; Chris Collazo-Davila; Daniel Grozea; Eric Landree; Laurence D. Marks; Marija Gajdardziska-Josifovska. Cyclic Ozone Identified in Magnesium Oxide (111) Surface Reconstructions (PDF). Physical Review Letters. November 30, 1998, 81 (22): 4891–4894 [2010-06-05]. Bibcode:1998PhRvL..81.4891P. doi:10.1103/PhysRevLett.81.4891. （原始內容存檔 (PDF)於2021-03-26）.
6. Temple Researcher Attempting To Create Cyclic Ozone. Science Daily. February 8, 2005 [2010-06-05]. （原始內容存檔於2016-11-29）.
7. Hoffmann, Roald. The story of O. The Ring. American Scientist. January–February 2004, 92 (1): 23–24. doi:10.1511/2004.1.23.