Inorganic Solid Phases

PbAl₂Si₂O₈, PbF_L (Al₂PbSi₂O₈ rt) Crystal Structure

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General Information

Phase Label(s): Al₂PbSi₂O₈ rt
Structure Class(es): –
Classification by Properties: –
Mineral Name(s): –
Pearson Symbol: mS112
Space Group: 15
Phase Prototype: (Al_0.5Si_0.5)₄PbO₈
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Siemens P4 (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): silicate
Interpretation Detail(s): complete structure determined, least-squares refinement; 119 variables; 2269 reflections; F > 4σ(F), R = 0.047; wR = 0.042
Sample Detail(s): sample prepared from PbO, Al₂O₃, SiO₂, electron microprobe analysis; Pb_1.02Al_2.00Si_1.99O₈, single crystal (determination of cell parameters), single crystal, 0.03×0.09×0.14 mm³ (determination of structural parameters)

Substance Summary

Standard Formula: Al₂PbSi₂O₈
Alphabetic Formula: Al₂O₈PbSi₂
Published Formula: PbAl₂Si₂O₈, PbF_L
Refined Formula: Al₂O₈PbSi₂
Wyckoff Sequence: 15,f¹³
Z Formula Units: 8
Density: ρ = 4.16 Mg·m⁻³

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Crystallographic Data

Cell Parameters

	Published Data	Standardized Data
	Published Data	Unit Cell	Niggli-Reduced Cell
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a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site	Element	Wyckoff Symbol	Symmetry	X	Y	Z	Occupation	Co-ord. No.	Atomic Env.
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Published

Site	Element	Wyckoff Symbol	Symmetry	X	Y	Z	Occupation
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Displacement Parameters

Isotropic

Site	Published U [nm²]	Type	Computed B_eq [nm²]
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Anisotropic

Site	U₁₁ [nm²]	U₂₂ [nm²]	U₃₃ [nm²]	U₁₂ [nm²]	U₁₃ [nm²]	U₂₃ [nm²]
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Experimental Details

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Reference

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3D Interactive Structure

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About this content

Database name

PAULING FILE Multinaries Edition – 2012

Dataset ID

sd_1213104

Copyright

©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

Chief Editor

Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

villars.mpds@bluewin.ch

Credits

SpringerMaterials Release 2016.

Project Coordinator: Shuichi Iwata

Section-Editor: Karin Cenzual (Crystal Structures)

Cite this content

Pierre Villars (Chief Editor), PAULING FILE in: Inorganic Solid Phases, SpringerMaterials (online database), Springer, Heidelberg (ed.) SpringerMaterials PbAl2Si2O8, PbFL (Al2PbSi2O8 rt) Crystal Structure sd_1213104 (Springer-Verlag GmbH, Heidelberg, © 2016)

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