Mixed Linker Strategy for the Construction of a Fluorescent 2D Network Based on [Ag₂(COO)₂] as Secondary Building Unit

Abstract

The ultrasound-assisted reaction of AgNO 3 , 2-amino-4,6-dimethylpyrimidine (dmapym) and 2,6-naphthalenedicarboxylic acid (H 2 npd) gave rise to a new 2D network of the formula [Ag 2 (dmapym) 2 (npd)] n (1). The atoms Ag1 and Ag2 in the complex show seesaw and distorted tetrahedral coordination geometries, respectively. The dmapym ligand acts as a bidentate bridge to bind paired Ag(I) ions into a chain. The chains are further connected by npd linkers to form the resultant 2D network reinforced by N-H···O hydrogen bonds between dmapym and npd. Weak C-H···π interactions are also found in the crystal structure. Complex 1 exhibits photoluminescence in the solid state at room temperature with an emission maximum at 418 nm upon excitation at 330 nm.