Can I have one single molecule of water?

Is it possible detach one single molecule of water into vacuum lab?

• Theoretically yes. But practically no. There are a lot of constraints in doing this in a laboratory. But next time onwards, include some details about your research, so that users can understand what type of answer you're looking for. Thanks. – user14250 Jan 28 '20 at 6:21

I suspect one can also make free-flying vacuum molecules simply by having heated water evaporate in vacuum and sending the thin vapor through filters and turbomolecular pumps in the right direction. It is easier to capture and control a charged object, but I see no technical reason why one could not get a single molecule. One might also use optical tweezers to bring togeher a $$H^+$$ and a $$OH^-$$ and build on from scratch.