[5,10,15,20-Tetra­kis(4-pyrid­yl)porphyrinato]zinc(II) acetic acid clathrate, and its unique polymeric honeycomb architecture

The crystal structure of the title compound, [Zn(C₄₀H₂₄N₈)]·1.6C₂H₄O₂ has been determined at ca 110 K. The centrosymmetric metalloporphyrin compound forms a self-assembled honeycomb architecture, with open channels extending parallel to the c axis of the unit cell. The compound crystallizes as an acetic acid clathrate. The guest species, which are included in the inter­porphyrin channels, hydrogen bond to the porphyrin framework.

5,10,15,20-Tetra­kis(4-pyrid­yl)porphyrin tris(acetic acid) clathrate

The crystal structure of the title compound, C₄₀H₂₆N₈·3CH₃COOH, has been determined at ca 110 K. The compound crystallizes as an acetic acid clathrate in which three guest mol­ecules are inter­calated between layered zones of offset stacked porphyrins. Two of the pyrid­yl groups of the latter are involved in hydrogen bonds with the acetic acid.