کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1340790 | 979755 | 2005 | 8 صفحه PDF | دانلود رایگان |
A lithium phthalocyanine radical and the analogous aluminum phthalocyanine radical were synthesized as part of an investigation of isostructural dopants. An improved synthesis of the free base of octa(pentoxy)phthalocyanine (H2Pc*) involves the reduction of 1,2-dicyano-4,5-dipentoxybenzene with hydroquinone. Deprotonation with lithium bis(trimethylsilyl)amide leads to the dilithium derivative Li2Pc* and subsequent oxidation with ferrocenium yields the radical LiPc*. Treatment of H2Pc* with Et2AlCl gives ClAlPc* and reduction with sodium amalgam yields AlPc*, the first reported aluminum phthalocyanine radical. In the solid state LiPc* and AlPc* are electrical conductors with pressed-pellet conductivities of 8 × 10−11 Ω−1 cm−1 and 5 × 10−7 Ω−1 cm−1, respectively.
The synthesis and characterization of the aluminum and lithium octa(pentoxy)phthalocyanine radicals, AlPc* and LiPc*, are described. In the solid state LiPc* and AlPc* are electrical conductors with pressed-pellet conductivities of 8 × 10−11 Ω−1 cm−1 and 5 × 10−7 Ω−1 cm−1, respectively.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 24, Issue 18, 8 December 2005, Pages 3004–3011