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The porphyrin macroring is easy to access, notes Steven C. Zimmerman, chemistry professor at the University of Illinois, Urbana-Champaign.
"Given the current interest in artificial photosynthetic systems, the array is likely to have interesting photophysical properties," he says. "In addition, the idea that the coordinative self-assembly initially produces polymers but can, under appropriate conditions, reorganize to a cyclic structure represents an impressive example of a dynamic assembly process."
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