Abstract
4,4′-{9,9′-Spirobi[10H-acridine]-10,10′-diyl}dibenzoic acid (L, C29H26N2O4) was designed and synthesized as a new donor–acceptor motif molecule. Due to the large dihedral angle between the planes of the carboxyphenyl group and the spiroacridine moiety, L possess thermally activated delayed fluorescence (TADF). By applying L as a ligand and using Cd as a metal connector, we synthesized the coordination polymer catena-poly[hemi-μ-aqua-aqua(μ3-4,4′-{9,9′-spirobi[10H-acridine]-10,10′-diyl}dibenzoato)cadmium(II)], [Cd(C29H24N2O4)(H2O)1.5]
n
, (I). X-ray crystallographic analysis revealed that this coordination polymer exhibits one-dimensional chains constructed from molecular twist-ring moieties, with Cd2O11 clusters as the connection nodes. The stacking pattern of the two-dimensional network was formed by C—H...π interactions in the solid state. Similar to L, (I) presents a sky-blue TADF emission, together with a photoluminescence quantum yield (PLQY) of 40%. It is worth noting that the photocatalytic activity toward the generation of singlet oxygen of this coordination polymer is confirmed.
Funder
National Natural Science Foundation of China
Publisher
International Union of Crystallography (IUCr)
Subject
Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry,Condensed Matter Physics
Cited by
3 articles.
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