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Hypothetical structure of a n = 12 metal:polyphosphate complex with a mass of ca. 1400 Da. Metals are presumed to bind as chelates to a floppy chain. It is statistically unlikely that all four metal ions coordinate, as drawn, to a single chain of this length. No particular stereochemistry is implied. 2D and 3D structures were generated using MarvinSketch (https://chemaxon.com/products/marvin) and Avogadro (https://avogadro.cc/), respectively.
