Structure of KCl-BiCl3 ionic glasses by neutron diffraction

Jonathan C. Wasse; Philip S. Salmon

doi:10.1088/0953-8984/10/37/003

Structure of KCl-BiCl₃ ionic glasses by neutron diffraction

Jonathan C. Wasse, Philip S. Salmon

University of East Anglia

Research output: Contribution to journal › Article › peer-review

10 Citations (SciVal)

Abstract

The structure of the ionic glasses (KCl)_x(BiCl₃)_1-x where x = 0.35, 0.40, 0.45, has been measured at 20 K by using neutron diffraction. The results show that BiCl₃ units exist as the predominant structural motifs at all compositions, give a Bi-Cl nearest-neighbour distance of 2.53(2) Å, and an angle Cl-Bi-Cl of 89(2)°. The nearest-neighbour K-Cl correlations occur at about 3.1 Å. The first sharp diffraction peak observed in the total structure factors is attributed to Bi-Bi correlations and the shift in its position to smaller scattering vector values with increased x is attributed to an enlarged separation of the BiCl₃ units with enhanced KCl content.

Original language	English
Pages (from-to)	8139-8146
Number of pages	8
Journal	Journal of Physics Condensed Matter
Volume	10
Issue number	37
DOIs	https://doi.org/10.1088/0953-8984/10/37/003
Publication status	Published - 21 Sept 1998

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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title = "Structure of KCl-BiCl3 ionic glasses by neutron diffraction",

abstract = "The structure of the ionic glasses (KCl)x(BiCl3)1-x where x = 0.35, 0.40, 0.45, has been measured at 20 K by using neutron diffraction. The results show that BiCl3 units exist as the predominant structural motifs at all compositions, give a Bi-Cl nearest-neighbour distance of 2.53(2) {\AA}, and an angle Cl-Bi-Cl of 89(2)°. The nearest-neighbour K-Cl correlations occur at about 3.1 {\AA}. The first sharp diffraction peak observed in the total structure factors is attributed to Bi-Bi correlations and the shift in its position to smaller scattering vector values with increased x is attributed to an enlarged separation of the BiCl3 units with enhanced KCl content.",

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T1 - Structure of KCl-BiCl3 ionic glasses by neutron diffraction

AU - Wasse, Jonathan C.

AU - Salmon, Philip S.

PY - 1998/9/21

Y1 - 1998/9/21

N2 - The structure of the ionic glasses (KCl)x(BiCl3)1-x where x = 0.35, 0.40, 0.45, has been measured at 20 K by using neutron diffraction. The results show that BiCl3 units exist as the predominant structural motifs at all compositions, give a Bi-Cl nearest-neighbour distance of 2.53(2) Å, and an angle Cl-Bi-Cl of 89(2)°. The nearest-neighbour K-Cl correlations occur at about 3.1 Å. The first sharp diffraction peak observed in the total structure factors is attributed to Bi-Bi correlations and the shift in its position to smaller scattering vector values with increased x is attributed to an enlarged separation of the BiCl3 units with enhanced KCl content.

AB - The structure of the ionic glasses (KCl)x(BiCl3)1-x where x = 0.35, 0.40, 0.45, has been measured at 20 K by using neutron diffraction. The results show that BiCl3 units exist as the predominant structural motifs at all compositions, give a Bi-Cl nearest-neighbour distance of 2.53(2) Å, and an angle Cl-Bi-Cl of 89(2)°. The nearest-neighbour K-Cl correlations occur at about 3.1 Å. The first sharp diffraction peak observed in the total structure factors is attributed to Bi-Bi correlations and the shift in its position to smaller scattering vector values with increased x is attributed to an enlarged separation of the BiCl3 units with enhanced KCl content.

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JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

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ER -

Structure of KCl-BiCl₃ ionic glasses by neutron diffraction

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