Glasses on the basis of heavy metal fluorides

Бреховских, М. Н.; Моисеева, Л. В.; Батыгов, С. Х.; Жидкова, И. А.; Федоров, В. А.

doi:10.1134/s0020168515130026

Cited by 13 publications

(3 citation statements)

References 60 publications

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“…[1][2][3][4] As the only transparent material in the continuum spectrum from ultraviolet up to middle IR (MIR) region, fluoride glasses offer an appealing alternative to prototypical silica glasses for a set of photonic applications. 5,6 However, fluoride glasses suffer from low glass-forming ability, weak mechanical properties and poor chemical resistance, which obstruct their widespread application in photonics. 7 It has been a great challenge to fabricate transparent fluoride glass ceramics (FGCs).…”

Section: Introductionmentioning

confidence: 99%

Transparent fluoride glass-ceramics with phase-selective crystallization for middle IR photonics

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Transparent fluoride glass-ceramics with phase-selective crystallization for middle IR photonics

et al. 2022

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“…Interest in fluorine chemistry has risen dramatically over recent years, in part owing to the ubiquity of fluorine compounds in agrochemical and pharmaceutical industries. In addition, metal fluoride compounds, which often exhibit novel structures and reactivity, − have also attracted attention and have found applications in homogeneous and heterogeneous catalysis, battery construction, and optical materials . Despite such interest, however, fluoride chemistry remains severely underexplored compared to that for the other halides.…”

Section: Introductionmentioning

confidence: 99%

Organozinc Fluoride and Trifluoromethyl Compounds Supported by the Bis(2-pyridylthio)methyl Ligand

Shlian

Parkin

2022

Organometallics

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The bis(2-pyridylthio)methyl ligand, [Bptm], has been employed in the synthesis of {[Bptm]Zn(μ-F)} 2 , a rare example of an organozinc fluoride compound. The dimeric nature of {[Bptm]Zn(μ-F)} 2 , which possesses an uncommon [Zn(μ-F)] 2 motif, contrasts with the monomeric structures reported for the other halide derivatives, [Bptm]ZnX (X = Cl, Br, I); this difference is supported by density functional theory calculations which indicate that the fluoride derivative favors a dimeric form with bridging fluoride ligands, whereas the other derivatives favor monomeric structures with terminal halide ligands. {[Bptm]Zn(μ-F)} 2 reacts with Me 3 SiCF 3 to afford the organozinc trifluoromethyl complex, namely [Bptm]ZnCF 3 . The Zn−CF 3 bond in this complex is longer than the Zn−CH 3 bond of the previously reported methyl derivative [Bptm]ZnMe, an observation that is precedented in related zinc compounds but counter to other metal complexes. The infrared frequency corresponding to the asymmetric C−F stretch of [Bptm]ZnCF 3 is unusually low for a metal trifluoromethyl species but is comparable to those for other zinc and cadmium complexes.

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“…Fluoride glasses, which were discovered in the 1970s, have shown great potential for use in infrared fiber lasers, amplifiers, and optical windows, and have been studied extensively. [1][2][3][4] The fluoride glass family is mainly composed of fluorozirconate glass, fluoindinate glass (FIG), and fluoroaluminate glass. In particular, FIG is considered a new generation of fiber lasers owing to its lower phonon energy, broader transparency window, and lower fiber loss than fluorozirconate glass and fluoroaluminate glass.…”

Section: Introductionmentioning

confidence: 99%

Performance and structure evolution of fluoindinate glass at high temperatures

et al. 2021

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Fluoindinate glass (FIG) is considered an ideal material for fiber laser devices and mid-infrared bulk optics components owing to its ultra-low phonon energy and broad transparency window. However, the heat generated by devices fabricated with FIG during their operation limits its application. Therefore, there is an urgent need to study its high-temperature properties. In this study, the thermal properties, microstructure, crystal phase behaviors, and optical and luminescent properties of high-temperature FIG were comprehensively evaluated. We also attempted to reveal the changes in its structure at high temperatures using variable-temperature Raman spectroscopy. We first found that the stretching vibration intensity of nonbridging F(F nb ) decreases, and the bending vibration of FIG increases with an increase in temperature, indicating that high temperatures could lead to the fracture of bridge bonds between some [InF 6 ] 3− octahedrons. Certainly, this will lead to glass structural instability, which will further increase the tendency of FIG to undergo devitrification in high-temperature conditions. We believe that this work will provide a reference for the performance improvement and application of fluoride glass at high temperatures.

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Glasses on the basis of heavy metal fluorides

Cited by 13 publications

References 60 publications

Transparent fluoride glass-ceramics with phase-selective crystallization for middle IR photonics

Transparent fluoride glass-ceramics with phase-selective crystallization for middle IR photonics

Organozinc Fluoride and Trifluoromethyl Compounds Supported by the Bis(2-pyridylthio)methyl Ligand

Performance and structure evolution of fluoindinate glass at high temperatures

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