Photoluminescent hybrid materials of lanthanide (Eu3+, Sm3+) polyoxometalates and polymer resin through ionic liquid linker

Abstract

We achieve luminescent soft hybrid materials with lanthanide polyoxometalates and polymer resin (Merrifield resin (MR) or Wang resin (WR)) through ionic liquid compound (3-(2-(2-mercaptoacetoxy)ethyl)-1-methyl-1H-imidazol-3-ium bromide (SHIL)) as chemical linker, which are designated as LnW10-SHIL-MR(WR) (Ln = Eu, Sm). The photoluminescent properties of these hybrids are characterized, and it is found that they present excitation both in the ultraviolet and visible regions. Under the excitation at the visible region, the yellow-orange emission is obtained for the LnW10 unit. Subsequently, the white luminescence for the excitation at the visible region can be observed. This provides the useful data to prepare the white luminescent soft hybrids of polymer and lanthanide polyoxometalates through an ionic liquid linker.