Raman Spectra of Molten GdCl3-KCl and GdCl3-NaCl.

晶子, 松岡; 漁子, 福島; 一男, 五十嵐; 泰彦, 岩舘; 純一, 持永

doi:10.1246/nikkashi.1993.471

Cited by 23 publications

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“…The spectrum is by a wide asymmetric vibrational band with a maximum in the region of 250 cm −1 , which agrees with the data. 27,[33][34][35][36][37] This band has been assigned to the stretching vibration of the Gd-Cl bond in the [GdCl 6 ] distorted octahedrons, which form a loose three-dimensional network in which gadolinium cations are bound together by means of bridging chlorine anions. 27,[33][34][35][36][37] A comparison of the Raman spectrum of the molten GdCl 3 after the addition of 0.8 or 3.5 mol % Gd 2 O 3 (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…27,[33][34][35][36][37] This band has been assigned to the stretching vibration of the Gd-Cl bond in the [GdCl 6 ] distorted octahedrons, which form a loose three-dimensional network in which gadolinium cations are bound together by means of bridging chlorine anions. 27,[33][34][35][36][37] A comparison of the Raman spectrum of the molten GdCl 3 after the addition of 0.8 or 3.5 mol % Gd 2 O 3 (Fig. 7) with that of the molten GdCl 3 reveals quantitative and qualitative changes.…”

Section: Resultsmentioning

confidence: 99%

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Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

Nikolaeva

Zakirýanova

Bovet

2022

J. Electrochem. Soc.

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The electrical conductivity of GdCl3 chloride melts with the gadolinium oxide (Gd2O3) additions ranging from 0 to 5 mol % was measured depending on both the temperature and concentration of Gd2O3. The obtained temperature dependencies can be approximated by Arrhenius-type equation. The calculated effective activation energy values of electrical conductivity increase with the increasing concentration of Gd2O3 above 2.5 mol %. A decrease in the electrical conductivity of the chloride melts when adding the gadolinium oxide according to the Raman spectra data can be explained by the presence of [OGd3Cln] oxychloride associates.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

Nikolaeva

Zakirýanova

Bovet

2022

J. Electrochem. Soc.

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“…The data acquisitions were made 5 times in the wavenumber range from 10 to 700 cm −1 with a sampling step of 0.1 cm −1 and a scanning speed of 6 cm −1 min −1 to smooth the spectra of simply scattered light, of light scattered parallel (I VV ) and perpendicular (I HV ) to the polarization of the incident light. The Raman cell and the sample holder assembly are sketched elsewhere [22].…”

Section: Raman Spectroscopymentioning

confidence: 99%

The Local Structure of Liquid TiCl4 Analyzed by X-Ray Diffraction and Raman Spectroscopy

Iwadate

Ohkubo

2013

Zeitschrift Für Naturforschung A

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Structural analyses were performed to determine the local structure of liquid TiCl 4 using laboratory-scale X-ray diffraction and Raman spectroscopy from which the existence of tetrahedral TiCl 4 molecules in the liquid was definitely confirmed. Conventionally, in molten salts, the valence increase of the central metal ion, for example in the range from 1 to 3, leads to more complicated liquid structures, yet a further increase in valence is usually accompanied by an enhanced covalency, forming stable tetrahedral molecules like e. g. CCl 4 . We discuss the intermolecular structure of TiCl 4 liquid as well as the intramolecular one.

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“…Owing to the charge asymmetry of the coordinating cations about the CP ions, the CP ions will more strongly associate to the Dy 3 + ions and consequently associates such as [DyCl 6 ] 3_ will have a longer life time. [24]). Neutron and X-ray diffraction studies of pure LnCl 3 melts also suggest that even in the pure melts the octahedral unit exists, which is connected to other units by edge-or corner-sharing (LN: Y (neutron) [25], Nd (X-ray) [26], La, Ce, Pr, Nd, Gd, Dy and Sm (X-ray) [27]).…”

Section: Internal Mobility Of Dy 3 +mentioning

confidence: 99%

Internal Cation Mobilities in Molten (K, Dy_1/3)Cl

Matsuura

Okada

Takagi

et al. 1998

Zeitschrift Für Naturforschung A

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Internal cation mobility ratios in the molten system KCl-DyCl 3 have been measured at 1093 K by Klemm's countercurrent electromigration method. From these, and data available on the conductivities and molar volumes of the mixtures, the internal mobilities b of both cations have been calculated. With increasing concentration of Dy, b K decreases. The decrease of b K is attributed to the tranquilization effect by Dy 3+ ions which strongly interact with Cl~ ions. With increasing concentration of K + , b Dy decreases; this may be attributed to the stronger association of Dy 3+ with CP ions due to the enhanced charge asymmetry of the two cations neighboring to the CP ions. It could not been clarified whether a species such as [DyCl 6 ] 3_ is also an electrically-conducting species in the K + rich range.

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Raman Spectra of Molten GdCl3-KCl and GdCl3-NaCl.

Cited by 23 publications

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Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

The Local Structure of Liquid TiCl4 Analyzed by X-Ray Diffraction and Raman Spectroscopy

Internal Cation Mobilities in Molten (K, Dy_1/3)Cl

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Raman Spectra of Molten GdCl3-KCl and GdCl3-NaCl.

Cited by 23 publications

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Electrical Conductivity of GdCl3-Gd2O3 Molten System

Electrical Conductivity of GdCl3-Gd2O3 Molten System

The Local Structure of Liquid TiCl4 Analyzed by X-Ray Diffraction and Raman Spectroscopy

Internal Cation Mobilities in Molten (K, Dy1/3)Cl

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Product

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Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

Electrical Conductivity of GdCl₃-Gd₂O₃ Molten System

Internal Cation Mobilities in Molten (K, Dy_1/3)Cl