Dimolybdenum dithallium diphosphate Tl2Mo2P2O11, is isotypic with K2Mo
2P2O11. Its framework is built from the original Mo2P2O15 unit, formed
by one Mo2O11 group sharing four of its corners with two PO4 tetrahed
ra, leading to [Mo2P2O13](infinity) chains running along c. The [Mo2P2
O11](infinity) framework forms two different intersecting tunnels runn
ing along c and [110], where the TI+ ions are located.