Designing nickel phthalocyanine periphery by alkyl chain via [1,3,4]-oxadiazole

Abstract

Nickel phthalocyanine (NiPc, 1) periphery has been decorated by alkyl chains of varying chain length via [1,3,4]-oxadiazole moiety (NiPcs 3a–3f). All the newly synthesized compounds NiPcs 3a–3d have been completely characterized by elemental analysis, FT-IR, solid-state UV-Vis, and solid-state ¹³C NMR spectroscopy, in addition to X-ray diffraction, scanning electron microscopy, and thermal analysis. The effect of chain length in the NiPc periphery on electronic absorption and DC electrical conductivity has been investigated.

Keywords:

• Phthalocyanine
• [1,3,4]-Oxadiazole
• Alkyl
• Solid-state electronic absorption spectra
• Solid-state ¹³C NMR
• DC electrical conductivity

Acknowledgments

The authors thank Prof. S. Natrajan, IISc, Bangalore, for providing solid-state electronic absorption spectra, as well as the NMR Research Center, IISc, Bangalore, for providing solid-state ¹³C NMR spectra.