Inorganic Solid Phases

Mg_2.30Ir_2.70 Crystal Structure

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General Information

Phase Label(s): Mg_2.30Ir_2.70
Structure Class(es): Frank-Kasper phase
Classification by Properties: –
Mineral Name(s): –
Pearson Symbol: mS50
Space Group: 12
Phase Prototype: V₂(Co_0.57Si_0.43)₃
Measurement Detail(s): Guinier film (determination of cell parameters), automatic diffractometer; STOE IPDS II (determination of structural parameters), X-rays, Cu Kα₁ (determination of cell parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of structural parameters)
Phase Class(es): –
Compound Class(es): intermetallic
Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement on F²; 76 variables; 1631 reflections, R = 0.0335; wR = 0.0666
Sample Detail(s): sample prepared from Mg, Ir, energy-dispersive X-ray analysis; Ir_54.0Mg_46.0; composition confirmed, powder (determination of cell parameters), single crystal, 0.025×0.030×0.045 mm³ (determination of structural parameters)

Substance Summary

Standard Formula: Mg_2.30Ir_2.70
Alphabetic Formula: Ir_2.70Mg_2.30
Published Formula: Mg_2.30Ir_2.70
Refined Formula: Ir_2.70Mg_2.30
Wyckoff Sequence: 12,j²i⁸c
Z Formula Units: 10
Density: ρ = 11.59 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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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_1906683

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 Mg2.30Ir2.70 Crystal Structure sd_1906683 (Springer-Verlag GmbH, Heidelberg, © 2016)

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