You can say they are perfect foils for each other or are perfect rivals, but that's not really what I'm getting it. What word describes the perfect level of acrimony between two people, which would be the opposite of "chemistry"? Thesaurus suggests "repulsion" but that doesn't really capture the inherent feeling in the room when you see these people together. It's not that they have "bad chemistry" (don't work well together), it's that their hatred of each other motivates them and pushes them to succeed, so in the end they accomplishes as much as a pair with perfect "normal" chemistry. Maybe another way to describe "anti-chemistry" is bad chemistry that mutates into to good chemistry.
Born from a mutual dislike, Adam and Jamie have great _________.
Adam and Jamie's _________, born from mutual dislike, is tangible.