[Mn(C18H16N2O2)3](ClO4)2: A Polymeric 34‐ and 68‐Membered Metallacyclic Network Forming a Novel Woven Polycatenated Structure

Two interpenetrating networks of 34- and 68-membered manganese-containing macrocycles with the manganese atoms in octahedral environments (see picture) are present in the polycatenane structure of the title compound. This arrangement is stabilized by face-to-face and edgo-to-face π–π interactions. The mechanism of formation of this complex structure is as yet unclear.