Isostructural Complexes of Diiodo(phthalocyaninato)germanium(IV) and Diiodo(phthalocyaninato)tin(IV)

New diiodo(phthalocyaninato-κ⁴)germanium(IV), [GeI₂(C₃₂H₁₆N₈)] (GePcI₂, where Pc = C₃₂H₁₆N₈), and diiodo(phthalocyaninato-κ⁴)tin(IV), [SnI₂(C₃₂H₁₆N₈)] (SnPcI₂), complexes have been obtained. The phthalocyanine residues are centrosymmetric and are not staggered but slipped. In both cases, the phthalocyanine ring is not strictly planar. The M—I axis is tilted 1.9° in GePcI₂ and 3.0° in SnPcI₂ from the normal to the N₄-isoindole plane. In both compounds, the metal atoms (Ge and Sn) lie on the inversion centers and are octahedrally coordinated by the four isoindole N and the two I atoms.

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