Does low temperature effect bonding?

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Low temperatures can influence the types of molecules that elements can form, with some compounds only stable at cryogenic temperatures and others at higher temperatures. While the variety of molecules may not be definitively wider at lower temperatures, certain unique compounds do exist in these conditions. The primary effect of low temperatures is the slowing down of reaction kinetics, leading to longer time scales for reactions to occur. This slower reaction rate can affect the overall bonding processes. Understanding these dynamics is crucial for studying molecular formation under varying thermal conditions.
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Are elements able to form a wider variety of molecules at lower temperatures vs say 20oC?
 
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It's hard to characterize the variety as "wider." There are certain compounds only stable at cryogenic temperature (and things like Bose-Einstein condensates) but there are also compounds only stable at higher temperatures.

What is generally more significant is that the kinetics of the reactions are slowed down, so everything tends to take place on a much longer time scale.
 

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