Hydroxamate based transition metal-organic coordination polymers with semiconductive properties

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 51; no. 33; pp. 1279 - 12716
• Main Authors: Yan, Yong, Zhang, Ning-Ning, Börner, Martin, Kersting, Berthold, Krautscheid, Harald
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 23.08.2022
• Subjects: Addition polymerization; Bonding strength; Chelation; Coordination polymers; Ligands; Manganese ions; Transition metals
• ISSN: 1477-9226; 1477-9234; 1477-9234
• DOI: 10.1039/d2dt01359b

In addition to carboxylate and N-donor linkers, hydroxamates are a kind of new emerging ligand to form coordination polymers. However, owing to the difficulty in controlling the reversible formation of strong metal-hydroxamate coordination bonds, reports on ditopic or multitopic hydroxamate coordination polymers are rare. In this work, we combined the ligand H 2 ONDI, a bis-hydroxamate with a naphthalenediimide (NDI) core and rigid chelating groups, with transition metal ions (Mn 2+ and Cd 2+ ) and thus obtained three new hydroxamate coordination polymers. Benefiting from π-π stacking interactions between neighbouring ligands, Mn-ONDI-1 and CdCl-ONDI show interesting electrical conductivities. New coordination polymers based on a bis-hydroxamate linker, ONDI 2− , exhibit semiconductive properties benefiting from their -π stacking structure.