Stable heterometallic fluorinated β-diketonato/alkoxo complexes as precursors for Er-doped luminescence materials

New series of novel heterometallic fluorinated β-diketonato/alkoxo complexes have been synthesized in quantitative yields and characterized by analytical data, FT-IR, NMR and mass spectroscopy. Their thermal behavior was investigated by TGA. The plausible structure of β-diketonato/alkoxo complexes was suggested from the physico-chemical analysis. These complexes have been studied as potential precursors for planar optical amplifiers through the investigation of optical properties and a homogenous thin film spin coating. The volatility of these complexes was reduced by intramolecular hydrogen bonding. The assembling of fluorinated β-diketonato/alkoxo ligands ensures high coordination numbers for coordinated metals and improves their stability in ambient atmosphere.

Graphical abstractPhotoluminescence profiles for Er doped heterometallic β-diketonatoalkoxides (a) [Er{Yb · P(OR′)2(R‴)O2}3], (b) [Er{Yb(OR′)2(R‴)2}3], (c) [Er{Zr(OR)2(R‴)3}3]Figure optionsDownload full-size imageDownload as PowerPoint slide