1. Pritzker School of Molecular Engineering University of Chicago Chicago IL 60637 USA
2. Department of Materials Science and Engineering Cornell University Ithaca NY 14853 USA
3. Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA
4. X‐ray Science Division Argonne National Laboratory Lemont IL 60439 USA
5. Department of Chemistry University of Washington Seattle WA 98195 USA
6. Molecular Engineering and Sciences Institute University of Washington Seattle WA 98195 USA