system
Given the following post, respond as if you're commenting on Reddit:
human
Does pressure affect the way atoms bond? Are there any compounds/reactions that are not possible at NTP but could be if the reactants are placed in a chamber with a higher/lower pressure?

We all know how pressure affects intermolecular forces, but how about *inner* molecular forces?
gpt
This might not be quite what you are looking for but there are actually many fancy materials that you can form at high to extreme pressures.


For things achievable on earth a common example would be diamond. Less well known would be the various different types of ice (like ice V, VI, VII, XI).


More theoretical and possibly existing inside of gas giants like jupiter would be metallic hydrogen. Something infamous for being a bit of a holy grail of material science.


At ridiculously high pressures things start becoming exotic theoretical physics research such as the neutron pasta matter inside of neutron stars and other strange degenerate forms of matter.