Mo6Cl12-Incorporated Sol-Gel for Oxygen Sensing Applications

Synthesis and sol–gel assembly of nanophosphors

“…Based on this property, these thermally stable clusters have been studied for the development of real-time, high temperature oxygen sensor based on optical fibers [63]. In this purpose, silica sol-gel films deposited on quartz substrates by dip coating were prepared from TEOS solution containing Mo 6 Cl 12 cluster compound.…”

Luminescent coordination polymers based on Ca2+ and octahedral cluster anions [{M6Cli8}Cla6]2− (M = Mo, W): synthesis and thermal stability studies

“…Indeed, depending on X and L, some members of this family demonstrate intensive luminescence in the red/near-infrared region with emission lifetimes of hundreds of microseconds and often with significant quantum yields. [11][12][13][14][15][16][17] Due to these properties, materials based on these clusters have been demonstrated to have potential in solar energy harvesting, 18,19 bioimaging, photodynamic therapy, [20][21][22] photo-catalysis, [23][24][25][26][27] oxygen sensing, [28][29][30][31] lighting, [32][33][34] etc.…”

“…Indeed these cluster anions are well-known for their luminescence properties 35 and they are stable over a wide temperature range and in aqueous solution. 29 The choice of the cationic part and any of the supporting ligands for a CP should be driven by their coordination ability, electronic state that would not quench the luminescence of the cluster, transparency in the visible region of the spectra, and cost. Therefore, here we present the synthesis, crystal structures, stability studies and luminescence properties of new cluster compounds based on the cationic complexes of calcium coordinated by triphenylphosphine oxide (OPPh 3 ) and cluster anions [{M 6 37.…”

Triblock copolymer-based luminescent organic–inorganic hybrids triggered by heating and fluoroquinolone antibiotics

“…The enhanced response of the clusters luminescence to dioxygen [17,18] makes them promising building blocks for fiber optic probes. It is worth noting that literature data highlight, first of all, the change of inner-and outer-sphere environment as a powerful tool to tune Mo-centered luminescence by an apical ligands substitution [14][15][16] and counter-ions exchange [19,21].…”

“…Previously published papers [6,8] exemplify correlation of the temperature-induced phase transitions in liquid crystals and in aqueous solutions of triblock copolymers with lanthanide-centered luminescence. The development of water soluble supramolecular systems, where luminescence of inorganic luminophor correlates with thermally triggered aggregation of water soluble polymers is of particular importance, since it opens new routes to sense such phase transitions in aqueous solutions through a luminescent response.The reason for choice of hexamolybdenum halide clusters with the {Mo 6 X 8 } 4+ core and six additional terminal ligands as the inorganic luminophor is based on its unique metal-centered luminescence [9][10][11][12][13][14][15][16][17][18][19][20][21].The enhanced response of the clusters luminescence to dioxygen [17,18] makes them promising building blocks for fiber optic probes. It is worth noting that literature data highlight, first of all, the change of inner-and outer-sphere environment as a powerful tool to tune Mo-centered luminescence by an apical ligands substitution [14][15][16] and counter-ions exchange [19,21].…”