Synthesis, crystal structure and properties of a yttrium complex based on mixed functional ligands

Abstract

A new yttrium complex, [Y₂(H₂Dhbds)₃(phen)₂]·[Y₂(H₂Dhbds)₂(H₂Thbs)(phen)₂] (<strong>1</strong>) (Na₂H₂Dhbds = 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt; NaH₃Thbs = 2,3,5-trihydroxy-1-benzenesulfonic acid sodium salt), has been synthesized and structurally characterized. Complex <strong>1 </strong>consists of two dinuclear structural units bridged by H₂Dhbds^2- and H₂Thbs^2- ligands, where phen molecules act as N, N-bidentate ligands, chelating Y atoms. The dinuclear structural units are connected by π-π stacking interactions between phen molecules, generating a one-dimensional chain structure. In addition, complex <strong>1</strong> exhibits the broad fluorescent emission band at 365 nm, which originates from intraligand charge transitions.