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General Forums => Generic Discussion => Topic started by: Borek on February 07, 2017, 02:48:59 PM

Title: Wow, even helium not that noble :)
Post by: Borek on February 07, 2017, 02:48:59 PM
http://www.nature.com/nchem/journal/vaop/ncurrent/full/nchem.2716.html

Na2He, under very high pressures. A real compound, not helium atoms trapped in interatomic spaces.
Title: Re: Wow, even helium not that noble :)
Post by: Corribus on February 07, 2017, 05:35:12 PM
It's been a good month for diamond anvils - first metallic hydrogen, now this!
Title: Re: Wow, even helium not that noble :)
Post by: Irlanur on February 08, 2017, 04:48:19 AM
While I share the scientific enthusiasm that this was actually observed experimentally, I never really understood while these things seem to be such a huge surprise...
The inertness of the noble gases is just a "rule", it's not a theoretical necessity.
Title: Re: Wow, even helium not that noble :)
Post by: AWK on February 08, 2017, 05:46:45 AM
Some 20 years ago I read preprint (though never published) concerning quantum-chemical calculations.
Authors claimed that He2O if existed would be the hardest material on the earth.
Now we may expect K2Ar and K2Ne.