What allotropes of oxygen can exist at STP?

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Offline RD

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What allotropes of oxygen can exist at STP?
« on: 19/07/2016 03:01:03 »
I heard someone claim a quack-device produced O3 and O8 from O2 using high-voltage.

O3 (ozone) I believe, but O8 at STP ?

   
« Last Edit: 19/07/2016 03:05:13 by RD »

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Offline chiralSPO

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Re: What allotropes of oxygen can exist at STP?
« Reply #1 on: 19/07/2016 05:49:20 »
Singlet and triplet O2, and O3 are all I know of. I have never heard of O8, and would be highly surprised if such a molecule could be made in any appreciable quantity. S8 is a very common allotrope of sulfur, but that geometry would not be expected to work well for oxygen...

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Offline RD

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Re: What allotropes of oxygen can exist at STP?
« Reply #2 on: 19/07/2016 07:03:17 »
... I have never heard of O8...

I've read O8 does occur ... https://en.wikipedia.org/wiki/Allotropes_of_oxygen
But I can't see how it could exist at room temperature and atmospheric pressure.
« Last Edit: 19/07/2016 07:07:33 by RD »