Synthesis, characterization and electrical properties of novel metal-free, Co(II), Cu(II), Fe(II), Mn(II), Sn(II) phthalocyanines peripherally tetra-substituted with 2,3-dihydro-1H-inden-5-yloxy moiety

Novel metal-free and metal (Co, Cu, Fe, Mn and Sn) phthalocyanines were synthesized by cyclotetramerization of 4-(2,3-dihydro-1H-inden-5-yloxy)phthalonitrile and characterized by elemental analyses, IR, UV–vis and MALDI-TOF mass spectral data. The effect of metals on spectroscopic properties and aggregation behaviours of the novel Pcs were investigated in different concentration and solvents. Their electrical transport and dielectric properties were also investigated. The ac conductivity showed strong dependence on both temperature and frequency. The temperature dependence of frequency exponent s suggested a dominant hopping conduction process. It was observed that tan δ increases as the frequency increases and reaches a maximum and thereafter decreases. As the temperature increases the frequency at which tan δ reaches a maximum shifted towards higher frequencies.

Novel metal-free and metallo (Co, Cu, Fe, Mn and Sn) phthalocyanines were synthesized by cyclotetramerization of 4-(2,3-dihydro-1H-inden-5-yloxy)phthalonitrile and characterized by elemental analyses, IR, UV–vis, 1H NMR and MALDI-TOF mass spectral data. The effect of metals on electrical and spectroscopic properties and aggregation behaviours of the novel Pcs were investigated in different concentration and solvents.Figure optionsDownload as PowerPoint slideHighlights
• Synthesis and characterization of novel metal-free, Co(II), Cu(II), Fe(II), Mn(II) and Sn(II) phthalocyanines peripherally tetra-substituted with 2,3-dihydro-1H-inden-5-yloxy moiety.
• Investigation of electrical and spectroscopic properties of the novel phthalocyanines.
• Metal effect on the aggregation behaviours of novel phthalocyanines.