Synthesis and Property of Novel Phthalocyanine Having Pentafluorosulfanyl (SF5) Group on the Peripheral Positions

The pentafluorosulfanyl (SF₅) group is probably one of the most obscure, but attractive fluorinated functional groups in future materials. The SF₅ moiety is thermally, hydrolytically and chemically stable and is considered to be a “super-trifluoromethyl (CF₃) group”. Besides, the SF₅ group is larger than the CF₃ group with higher lipophilicity and electronegativity. In addition, the geometry of these two functional groups is completely different: the SF₅ group presents a pyramidal electron density while the CF₃ displays an inverted cone of density. Although applications of SF₅ compounds in material science and medicinal chemistry have been reported, there is no example of the synthesis of phtalocyanineshaving an SF₅ moiety in their structures. In this paper, we disclose the synthesis and properties of SF₅-substituted phtalocyanines.