Sentitized near-infrared emission in novel neodymium complexes bearing oligothiophene derivatives as antennae

摘要: Abstract A series of neodymium complexes based on (α-oligothiophen-2-yl)(2-hydroxy-3-methoxyphenyl)methanone moiety was prepared and studied by FTIR, NMR, optical spectroscopies. As a function the thiophene ring number in ligand, variation both stoichiometry properties complex are observed. The solid-state ligand structure indicates close packing stressed situation enolate residues, i.e. non-coplanarity between phenyl moieties. An un-precedent observed, namely two metal five ligands, according to synthesis conditions encumbrance with respect ionic radius Nd3+. This fact is attributed contribution coordination methoxy group. Luminescence lifetime determination discussed light above factors.