(5,10,15,20-Tetra­phenyl­porphyrinato-κ⁴N)zinc–18-crown-6 (1/1)

In the title compound, [Zn(C₄₄H₂₈N₄)]·C₁₂H₂₄O₆, the Zn^II ion lies on an inversion center and the asymmetric unit contains one half of a Zn(TPP) complex (TPP = 5,10,15,20-tetra­phenyl­porphyrin dianion) and one half of a centrosymmetric 18-crown-6 mol­ecule. The Zn(TPP) complex exhibits a nearly planar conformation of the porphyrin core [maximum deviation = 0.106 (2) Å] with an average Zn—N distance of 2.047 (2) Å. The title compound is considered as a one-dimensional polymer along [010], in which the Zn(TPP) moiety is linked to the closest O atoms of two symmetry-related 18-crown-6 mol­ecules with a Zn—O distance of 2.582 (1) Å, completing a distorted octahedral coordination environment of the metal ion. The chains are mainly sustained by weak C—H...π inter­actions. An ethyl­ene group of the 18-crown-6 mol­ecule is disordered over three sites with occupancies of 0.50, 0.25 and 0.25.

Absolute configuration of (1R,3S,8R,11R)-3,7,7,10-tetra­methyl­tri­cyclo­[6.4.0.0^1,3]dodec-9-en-11-ol

The absolute configuration of the title compound, C₁₆H₂₆O, was determined as (1R,3S,8R,11R) based mainly on the synthetic pathway but is also implied by the X-ray analysis. The mol­ecule contains fused six- and seven-membered rings. Part of the seven-membered ring was refined as disordered over two sets of sites with the occupancy ratio fixed at 0.86:0.14. The disorder corresponds to a major chair conformation and a minor boat conforation. In the crysyal, O—H...O hydrogen bonds connect the mol­ecules into chains parallel to the a axis.