A symmetric, triply interlaced 3-D anionic MOF that exhibits both magnetic order and SMM behaviour.

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A symmetric, triply interlaced 3-D anionic MOF that exhibits both magnetic order and SMM behaviour.

A newly prepared 3-D polymer of cobalt citrate cubanes bridged by high-spin Co(II) centres displays both single-molecule magnet (SMM) behaviour and magnetic ordering. Triple interpenetration of the 3-D diamondoid polymers yields a crystalline solid with channels that host cations and free water molecules, with the SMM behaviour of the Co4O4 cores preserved. The octahedrally coordinated Co(II) bridges are implicated in the onset of magnetic order at an experimentally accessible temperature.