Abstract
Iodophthalocyaninato(2–)thallium(III) – Synthesis and Crystal Structure Oxidation of dithalliumphthalocyaninate(2–) with excess iodine yields crystalline, blue-green iodophthalocyaninato(2–)thallium(III). It crystallizes in the orthorhombic space group Pnma (no. 62) with lattice parameters: a = 13.778(3) A, b = 14.649(2) A, c = 14.907(1) A, Z = 4. The Tl atom coordinates four Niso atoms (isoindole N atoms) and one I atom in a tetragonal pyramidal arrangement. The Tl atom is located out of the centre of the (Niso)4 plane towards the iodine atom by 0.959(3) A. The Tl–I distance is 2.674(1) A, the Tl–Niso distances range from 2.20(1) to 2.23(1) A (average 2.22(1) A). The phthalocyaninate(2–) is severely distorted from planarity (concave distortion).
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