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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231178
Development of Luminescent Pt(II) Supramolecular Polymers and Materials
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Molecular building blocks for the preparation of cellulose-based luminescent hybrid materials were developed through the synthesis of ethynyl-functionalized naphthalimide and naphthalic anhydride linkers, cyclometalated platinum(II) NCN complexes, and cellulose-functionalization strategies. Two ethynyl-functionalized linkers (L1 and L2), two NCN ligands (L3 and L4), and the cyclometalated platinum(II) complexes PtL3 and PtL4 were successfully synthesized and characterized. Subsequent coupling reactions afforded the luminescent monomer L1-PtL4, which exhibited a dominant phosphorescent emission centered at 490 nm together with a weak fluorescence band around 400 nm attributed to the naphthalimide fragment. The total photoluminescence quantum yield (ΦPL) increased from 3.1% in air to 29.4% under nitrogen atmosphere, while the phosphorescence lifetime (τPh) increased from 295 ns to 2.94 μs. Finally, different strategies for the functionalization of sulfonated cellulose were investigated. Direct functionalization in dimethyl sulfoxide resulted mainly in physical adsorption of the linker, whereas maleic anhydride-assisted functionalization using linker L2 afforded water-soluble cellulose derivatives whose spectroscopic characterization supports incorporation of the naphthalic derivative into the cellulose matrix
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Màster en Química de Materials Aplicada, Facultat de Química. Curs: 2025-2026. Tutores: Ariadna Lázaro, Andrea Pinto
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ÑAÑEZ AZAÑA, Robert Erick. Development of Luminescent Pt(II) Supramolecular Polymers and Materials. [consulted: 14 of November of 2026]. Available at: https://hdl.handle.net/2445/231178