Sub-phthalocyanine-incorporated Fe(ii) metallo-supramolecular polymer exhibiting blue-to-transmissive electrochromic transition with high transmittance and coloration efficiency

Abstract

The preparation of a new Fe(II) metallo-supramolecular polymer (poly-subPc-Fe) constructed from a terpyridine-functionalized sub-phthalocyanine with axially substituted polyisobutylene is presented. The as-prepared poly-subPc-Fe exhibited an excellent blue-to-transmissive electrochromic transition with high transmittance of 91.8%, superior coloration efficiency of 325.3 cm² C⁻¹, and stable redox cycling even after 1000 cycles.