Keith Werling’s favorite structure is:

2-methyl-4-nitroaniline

Why?

The first paper that I was first author on involved using ab initio quantum mechanics to calculate the piezo coefficient of 2-methyl-4-nitroaniline. This was one of the first papers to show that hydrogen-bonds can exhibit a significant piezoelectric response. I'm now using the methods that I have since developed from these initial calculations to find organic crystals that show piezo responses that can compete with the many inorganic ceramics that are the leading piezoelectric materials.  Hopefully the diversity of organic materials will broaden the uses of piezo materials.  An example would be the use of flexible film piezoelectrics in the use of pacemakers!  Wish I could upload a graphic from my paper, but I don't have a laptop with me  =(—Keith Werling

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