Exploring the Detection of Metal Ions by Tailoring the Coordination Mode of V‑Shaped Thienylpyridyl Ligand in Three MOFs

By employing a rational design approach, we synthesized three luminescent metal–organic frameworks (MOFs) 1–3 affording different coordination modes of V-shaped thienylpyridyl ligand. Their application in detecting metal ions was explored, and the mechanism was inferred. And the result exhibits that MOF 3 is a dual-responsive luminescent probe for Fe³⁺ and Al³⁺ ions.