Novel planar and sandwich-type complexes of substituted tetrathieno[2,3-b] porphyrazine: Synthesis and investigation of properties

An efficient synthetic approach to a novel substituted tetrathieno[2,3-b]porphyrazine, its Mg, Zn, Lu complexes and a Lu triple-decker complex was developed. Spectral properties and aggregation phenomena of the target compounds were investigated by UV/Vis spectroscopy and atomic force microscopy (AFM). Electrochromic behaviour of the Zn complex was studied by electrochemistry and spectroelectrochemistry.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Novel highly soluble substituted porphyrazines were synthesised in high yields (45–80%). ► Heterocyclic ring annelated sandwich-type porphyrazine complex was synthesised for the first time. ► Spectral properties and aggregation phenomena of the target compounds were investigated by UV/Vis spectroscopy and AFM. ► Electrochromic behaviour of the Zn complex was studied by electrochemistry and spectroelectrochemistry.