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Non‐Planar Lithium‐Phthalocyanine in the Double Salt (nBu4N)2[Lipc]PF6
Authors:Ralph Huebner  Sakthivel Kandaiah  Prof Dr Martin Jansen
Institution:Max‐Planck‐Institut für Festk?rperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany
Abstract:We report the synthesis of the diamagnetic double salt bis(tetra(n‐butyl)ammonium) phthalocyanato(2‐)lithate hexafluorophosphate (nBu4N)2Lipc]PF6 pc = phthalocyanine, nBu4N+ = tetra(n‐butyl)ammonium] in dme (dme = dimethoxyethane). According to single‐crystal X‐ray diffraction structure analysis P$\bar{1}$equation image , a = 8.642(2) Å, b = 12.820(3) Å, c = 15.019(3) Å, α = 83.01(3)°, β = 87.87(3)°, γ = 74.45(3)°, Z = 1, R1 = 6.4 %], the phthalocyanine building bloc shows a substantial distortion of the macrocyclic ring from planarity. The deviation from D4h symmetry originates from packing effects induced by the two tetra(n‐butyl)ammonium cations located above and below the macrocycle. DFT structure optimization starting from the experimental non‐planar configuration produces a fully planar complex anion Lipc].
Keywords:Crystal structure  Double salts  Lithium  Phthalocyanine  Non‐planar  Packing effects
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