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WikiProject Chemicals (Rated Stub-class, Low-importance)
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Okay, it's becoming clear to me from reading all these papers that we're really talking about two different things here: the red solid that's stable between 10 and 96 GPa, and the unstable species detected in mass spectroscopy experiments (i.e. in a vacuum, zero pressure). There's no reason they should have the same structure or properties. I'll split it into two sections to reflect this. —Keenan Pepper 22:46, 13 July 2006 (UTC)

Also, I can't find any sources that mention its possible use as rocket fuel. —Keenan Pepper 00:04, 14 July 2006 (UTC)

Okay, now I found the Nature News article this is copied from almost verbatim. Good thing I'm doing a rewrite at User:Keenan Pepper/Tetraoxygen. —Keenan Pepper 00:13, 14 July 2006 (UTC)

Cleanup tag?[edit]

What, exactly, needs cleaning up? —Keenan Pepper 23:12, 26 August 2006 (UTC)

This site needs some work...[edit]

It really does. very sad. It needs some physical properties of physical information and more data. -- 00:45, 29 September 2006 (UTC)

This page is in need of major updating. The ε phase of oxygen is NOT O4. A group has determined this by XRD. Four oxygen molecules associate into a rhombohedral (O2)4 = O8 not O4

Article: Phys. Rev. Lett. 2006,97,085503

Possible form[edit]

Is it possible that the O4 molecule is similar to that of ozone?

O2 --> O=O

O3 --> O=O+-O-

O4 --> O--O+=O+-O- —Preceding unsigned comment added by Kazyan1 (talkcontribs) 04:24, 24 November 2009 (UTC)