Inorganic Solid Phases

Na₂H₂P₂O₇ (H₂Na₂[P₂O₇]) Crystal Structure

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General Information

Phase Label(s): H₂Na₂[P₂O₇]
Structure Class(es): –
Classification by Properties: –
Mineral Name(s): –
Pearson Symbol: oF176
Space Group: 70
Phase Prototype: (Na_0.67Zr_0.33)₂[P₂O₇]
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; HZG-4A (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): diphosphate
Interpretation Detail(s): complete structure determined, Rietveld refinement, R_P = 0.07; wR_P = 0.088; R_B = 0.069
Sample Detail(s): sample prepared from Na₂H₂P₂O₇[H₂O]₆, powder (determination of cell and structural parameters)

Substance Summary

Standard Formula: H₂Na₂[P₂O₇]
Alphabetic Formula: H₂Na₂[P₂O₇]
Published Formula: Na₂H₂P₂O₇
Refined Formula: H₂Na₂O₇P₂
Wyckoff Sequence: 70,h⁵g
Z Formula Units: 16
Density: ρ = 2.53 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 B [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_1628087

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 Na2H2P2O7 (H2Na2[P2O7]) Crystal Structure sd_1628087 (Springer-Verlag GmbH, Heidelberg, © 2016)

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