Changes of vibrational modes upon melting solid Cs2NaScCl6, Cs3ScCl6, Cs3Sc2Cl9 and ScCl3

Zissi, Georgia D.; Papatheodorou, George

doi:10.1016/s0009-2614(99)00583-7

Cited by 16 publications

(20 citation statements)

References 14 publications

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“…204 These values are in good agreement with the local structure deduced from Raman studies of ScCl 3 -CsCl and ScI 3 -CsI mixtures. [205][206][207] At low ScX 3 content (x ScX3 o 0.25), the predominant species is ScX 6 3À in equilibrium with ScI 4…”

Section: Iii31 Rare Earth Metal Halidesmentioning

confidence: 99%

Studies of the local structures of molten metal halides

Rollet

Salanne

2011

Annu. Rep. Prog. Chem., Sect. C: Phys. Chem.

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This review covers the local structure of molten metal halide, where a somewhat wide definition of ''local structure'' is employed, i.e. from the first shell of interacting neighbours up to correlations arising at the nanometer length scale. These particular liquids are indeed strongly organized at unusually long distances due to the predominance of coulombic interactions. Many of them are also characterized by the formation of intermediate range ordering. It is therefore impossible to describe the local structure of these liquids omitting this longer-ranged correlation. Finally, a deeper attention is given to the systems on which recent progresses have been made in the last decade, as for instance molten fluorides and rare earth halides.

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Section: Iii31 Rare Earth Metal Halidesmentioning

confidence: 99%

Studies of the local structures of molten metal halides

Rollet

Salanne

2011

Annu. Rep. Prog. Chem., Sect. C: Phys. Chem.

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“…The solids with X ScCl 3 ¼ 0.25, 0.4 and 1.0 are one phase crystalline compounds whose spectra have been reported before. 8 For all other compositions the room temperature solid was a mixture of two crystalline compounds as expected from the phase diagram. An example of the quality of the raw Raman spectra measured is given in Fig.…”

Section: Methodsmentioning

confidence: 81%

“…This assignment is based on our previous observation that the vibrational internal modes of the ScCl 6 3À octahedral in solid elpasolite Cs 2 NaScCl 6 and in Cs 3 ScCl 6 are transferred into the liquid upon melting. 8 The depolarized v 5 (T 2g ) mode of the octahedral is also observed at 150 cm À1 in the anisotropic spectra (D 1 band). Measurements of spectra at lower temperatures show (Fig.…”

Section: Resultsmentioning

confidence: 94%

“…In a previous study, regarding the melting of the Cs 3 Sc 2 Cl 9 polycrystalline solid, it was argued that the main vibrational frequencies of the ''independent'' Sc 2 Cl 9 3À molecular ion present in the crystal are transferred into the melt. 8 The strong band at 345 cm À1 (marked as D 3h ), the weak band at B180 cm À1 and a band in the frequency area of the P 1 band are the characterist bands of Sc 2 Cl 9 3À in the melt. Two ''ScCl 6 '' octahedral are bound by a face creating a dimeric species with D 3h symmetry which is isostructural to the well studied Cr 2 Cl 9 3À ion.…”

Section: Resultsmentioning

confidence: 99%

“…More recently a study of the changes of vibrational modes upon melting the Cs 2 NaScCl 6 , Cs 3 ScCl 6 and Cs 3 Sc 2 Cl 9 compounds has also shown the presence of ScCl 6 3À , and ScCl 4 À as well as Sc 2 Cl 9 3À species. 8 Furthermore in the ScCl 3 -CsCl systems and in solutions dilute in ScCl 3 an equilibrium between six (ScCl 6…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Composition and temperature induced changes on the structure of molten ScCl₃–CsCl mixtures

Zissi

Papatheodorou

2004

Phys. Chem. Chem. Phys.

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Rare‐Earth‐Based Perovskite Cs₂AgScCl₆:Bi for Strong Full Visible Spectrum Emission

Zeng

Sun

Zhang

et al. 2022

Adv Funct Materials

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Most luminescent materials can only emit light with a particular wavelength. In general, various phosphors with complementary spectral ranges are mixed to realize full-spectrum lighting. Therefore, the integration of luminescence at different wavebands in the single component matrix to obtain white emission is the optimal strategy for designing lighting materials. Thus, Sc-based double perovskite Cs 2 AgScCl 6 :xBi with adjustable free exciton and self-trapped exciton luminescence is synthesized by the vacuum evaporation assisted synthetic method. This perovskite can be used as white phosphor to assemble a high-quality white lighting device. Density functional theory calculations have revealed that the introduction of Bi optimizes the electron transfer and suppresses the defects in Cs 2 AgScCl 6 , which leads to excellent luminescent performance in a broad wavelength range. This work provides a new concept and strategy for the design and preparation of rare-earth optical perovskites in the future.

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Changes of vibrational modes upon melting solid Cs2NaScCl6, Cs3ScCl6, Cs3Sc2Cl9 and ScCl3

Cited by 16 publications

References 14 publications

Studies of the local structures of molten metal halides

Studies of the local structures of molten metal halides

Composition and temperature induced changes on the structure of molten ScCl₃–CsCl mixtures

Rare‐Earth‐Based Perovskite Cs₂AgScCl₆:Bi for Strong Full Visible Spectrum Emission

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Changes of vibrational modes upon melting solid Cs2NaScCl6, Cs3ScCl6, Cs3Sc2Cl9 and ScCl3

Cited by 16 publications

References 14 publications

Studies of the local structures of molten metal halides

Studies of the local structures of molten metal halides

Composition and temperature induced changes on the structure of molten ScCl3–CsCl mixtures

Rare‐Earth‐Based Perovskite Cs2AgScCl6:Bi for Strong Full Visible Spectrum Emission

Contact Info

Product

Resources

About

Composition and temperature induced changes on the structure of molten ScCl₃–CsCl mixtures

Rare‐Earth‐Based Perovskite Cs₂AgScCl₆:Bi for Strong Full Visible Spectrum Emission