Preyssler‐Pope‐Jeannin Polyanions [NaP5W30O110]14– and [AgP5W30O110]14–: Microwave‐Assisted Synthesis, Structure, and Biological Activity

The Preyssler‐Pope‐Jeannin polyanion [NaP 5 W 30 O 110 ] 14– ( 1 ) was prepared by microwave‐assisted synthesis in only 2 h with a yield comparable to the reported hydrothermal procedure. The purity of 1 was confirmed by FT‐IR and multinuclear NMR ( 31 P, 183 W) analysis. The silver(I)‐containing analogue [AgP 5 W 30 O 110 ] 14– ( 2 ) was also prepared by hydrothermal (6 d) as well as microwave‐based (2 h) procedures. Polyanion 2 was characterized in the solid state by FT‐IR, single‐crystal XRD, TGA, and elemental analysis and in solution by 31 P and 183 W NMR, and ESI‐MS. The antiproliferative activities against human cells as well as the antimicrobial properties towards Gram‐positive and Gram‐negative bacteria were comparatively evaluated for 1 and 2 .