Spinal columnar liquid crystals: polymeric octasubstituted µ-oxo-(phthalocyaninato)tin(IV)

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Abstract
An octa-alkylsubstituted derivative of dihydroxo-tin(IV) phthalocyanine is shown to form columnar liquid crystals; polycondensation of the dihydroxo-tin(IV) derivative leads to a spinal columnar mesophase by formation of oxystannyl links between the macrocyclic units.