Golden Metallopolymers with an Active T₁ State via Coordination of Poly(4-vinyl)pyridine to Pentahalophenyl-Gold(I) Precursors

Abstract

Brightly phosphorescent gold-based metallopolymers have been synthesized by reaction of nonluminescent reactants comprised of the commercially available polymer PVP = poly(4-vinylpyridine) and the Au(I) precursors [Au(C(6)X(5))THT] (X = F or Cl; THT = tetrahydrothiophene). The metallopolymer products exhibit remarkable photoluminescence properties including high solid-state quantum yield (up to 0.63 at RT) and coarse- and fine-tuning to multiple phosphorescence bands across the visible spectrum via luminescence thermochromism and site-selective excitation. The emissions are caused by intrachain and interchain aurophilic interactions between the linear Au(I) complexes in the metallopolymers. This investigation provides further manifestations of interesting chemistry and photophysics in N-heterocyclic coordination compounds of Au(I) by expansion from the small-molecule to the metallopolymer regime. The spectroscopic and material properties of the new class of metallopolymers are desirable for future studies that will utilize them as emitters for photonic applications such as polymer light-emitting diodes and sensors.

Investigation of pyrolysis temperature in the one-step synthesis of L10 FePt nanoparticles from a FePt-containing metallopolymer

“…However, the superparamagnetic A 1 phase FePt NPs are usually formed rst in this way, and a post annealing step is required to give rise to the desirable L1 0 phase. photovoltaic cells, 15 nanocomposites, 16,17 biosensors, 18 polymer light-emitting diodes, 19,20 etc. 6,7 This might be attributed to the fact that the elements Fe and Pt reside in the separate compounds which have different onset decomposition temperatures.…”

Solid-State Preparation of Metal and Metal Oxides Nanostructures and Their Application in Environmental Remediation

“…The facile reaction of the Au metallic salts = AuCl, AuCl 3 , AuC 6 F 5 , Au(PPh 3 )Cl with the PS-4-co-PVP polymer leads to the luminescent macromolecular complexes PS-4-co-PVP•AuCl 3 , PS-4-co-PVP•AuCl, PS-4-co-PVP•AuC 6 F 5 , and PS-4-co-PVP•Au(PPh 3 )Cl. The observed luminescence for PS-4-co-PVP•AuC 6 F 5 with a maximum around 550 nm, as shown in Figure 9, arises probably from the Au(I)-Au(I) interactions [93]. Interestingly, the macromolecular complex PS-4-co-PVP•(AuCl 3 ) n does not present this luminescent behavior.…”

Inorganic and organometallic polymers

“…Gold functionalized poly(4-vinylpyridine)s were obtained as bright green luminescent solids from the direct reaction of poly(4-vinylpyridine) with the Au(I) sources, Au(C 6 X 5 )THT (X = F or Cl; THT = tetrahydrothiophene); efforts are currently underway to develop these materials as PLED phosphors. 98 The creation of ordered domains of gold nanoparticles within lamellar structures was achieved via the binding of gold particles to the pyridine residues within ordered polystyrene-block-polyvinylpyridine copolymers arrays. 99 Smith and coworkers communicated the synthesis of the diphosphine linked metallopolymers 38 and 39.…”