Terpyridine–Thiophene–Triphenylamine Conjugated Ligand Design Enabling Green-Colored, Multistate Electrochromic Fe(II) Metallopolymers

Key Points

• The research aims to develop Fe II metallopolymers with the ability to achieve a range of color outputs, specifically targeting green hues.
• Designed conjugated ligands combining terpyridine, thiophene, and triphenylamine.
• Synthesized Fe II metallopolymers using the newly designed ligands.
• Characterized electrochromic properties to evaluate color change capabilities.
• Successfully produced green-colored electrochromic materials.
• Demonstrated multiple stable color states beyond traditional purple hues.
• Showed enhanced control over color outputs compared to previous metallopolymer designs.