New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4

Hamdi Yahia, Tom Nilges, Ute Ch Rodewald, Rainer Pöttgen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The title compounds have been synthesized by a solid state reaction route using a salt flux. Their crystal structures were determined from single crystal X-ray data. NaKAl2O[AsO4]2 crystallizes with the orthorhombic K2Fe2O[AsO4]2-type, Pnma, a = 8.2368(6) , b = 5.5228(3) , c = 17.0160(13) and Z = 4, whereas Na2KAl3[AsO4]4 crystallizes with the orthorhombic K3Fe3[AsO4]4-type, Cmce, a = 10.5049(9), b = 20.482(2), c = 6.3574(6) and Z = 4. The NaKAl 2O[AsO4]2 structure is built up of [Al 2As2O9]2- layers perpendicular to the c-axis which are separated by A+ alkali layers. The [Al 2As2O9]2- layers consist of ribbons of edge-sharing AlO6 octahedra, running along the a direction and which are connected through AsO4 tetrahedra by sharing corners. The Na2KAl3[AsO4]4 structure contains [Al3As4O16]3- layers perpendicular to the b-axis separated by A+ alkali layers. The [Al 3As4O16]3- layer consists of a layer of corner-sharing AlO6 octahedra which are also connected to the AsO4 tetrahedra by sharing corners.

Original languageEnglish
Pages (from-to)2017-2023
Number of pages7
JournalMaterials Research Bulletin
Volume45
Issue number12
DOIs
Publication statusPublished - Dec 2010
Externally publishedYes

Fingerprint

Arsenates
arsenates
Alkalies
Solid state reactions
Crystal structure
Single crystals
Salts
Fluxes
X rays
tetrahedrons
alkalies
ribbons
routes
salts
solid state

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4. / Yahia, Hamdi; Nilges, Tom; Rodewald, Ute Ch; Pöttgen, Rainer.

In: Materials Research Bulletin, Vol. 45, No. 12, 12.2010, p. 2017-2023.

Research output: Contribution to journalArticle

Yahia, Hamdi ; Nilges, Tom ; Rodewald, Ute Ch ; Pöttgen, Rainer. / New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4. In: Materials Research Bulletin. 2010 ; Vol. 45, No. 12. pp. 2017-2023.
@article{acdec07204a143eb9b2370b2bb4846ba,
title = "New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4",
abstract = "The title compounds have been synthesized by a solid state reaction route using a salt flux. Their crystal structures were determined from single crystal X-ray data. NaKAl2O[AsO4]2 crystallizes with the orthorhombic K2Fe2O[AsO4]2-type, Pnma, a = 8.2368(6) , b = 5.5228(3) , c = 17.0160(13) and Z = 4, whereas Na2KAl3[AsO4]4 crystallizes with the orthorhombic K3Fe3[AsO4]4-type, Cmce, a = 10.5049(9), b = 20.482(2), c = 6.3574(6) and Z = 4. The NaKAl 2O[AsO4]2 structure is built up of [Al 2As2O9]2- layers perpendicular to the c-axis which are separated by A+ alkali layers. The [Al 2As2O9]2- layers consist of ribbons of edge-sharing AlO6 octahedra, running along the a direction and which are connected through AsO4 tetrahedra by sharing corners. The Na2KAl3[AsO4]4 structure contains [Al3As4O16]3- layers perpendicular to the b-axis separated by A+ alkali layers. The [Al 3As4O16]3- layer consists of a layer of corner-sharing AlO6 octahedra which are also connected to the AsO4 tetrahedra by sharing corners.",
author = "Hamdi Yahia and Tom Nilges and Rodewald, {Ute Ch} and Rainer P{\"o}ttgen",
year = "2010",
month = "12",
doi = "10.1016/j.materresbull.2010.07.009",
language = "English",
volume = "45",
pages = "2017--2023",
journal = "Materials Research Bulletin",
issn = "0025-5408",
publisher = "Elsevier Limited",
number = "12",

}

TY - JOUR

T1 - New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4

AU - Yahia, Hamdi

AU - Nilges, Tom

AU - Rodewald, Ute Ch

AU - Pöttgen, Rainer

PY - 2010/12

Y1 - 2010/12

N2 - The title compounds have been synthesized by a solid state reaction route using a salt flux. Their crystal structures were determined from single crystal X-ray data. NaKAl2O[AsO4]2 crystallizes with the orthorhombic K2Fe2O[AsO4]2-type, Pnma, a = 8.2368(6) , b = 5.5228(3) , c = 17.0160(13) and Z = 4, whereas Na2KAl3[AsO4]4 crystallizes with the orthorhombic K3Fe3[AsO4]4-type, Cmce, a = 10.5049(9), b = 20.482(2), c = 6.3574(6) and Z = 4. The NaKAl 2O[AsO4]2 structure is built up of [Al 2As2O9]2- layers perpendicular to the c-axis which are separated by A+ alkali layers. The [Al 2As2O9]2- layers consist of ribbons of edge-sharing AlO6 octahedra, running along the a direction and which are connected through AsO4 tetrahedra by sharing corners. The Na2KAl3[AsO4]4 structure contains [Al3As4O16]3- layers perpendicular to the b-axis separated by A+ alkali layers. The [Al 3As4O16]3- layer consists of a layer of corner-sharing AlO6 octahedra which are also connected to the AsO4 tetrahedra by sharing corners.

AB - The title compounds have been synthesized by a solid state reaction route using a salt flux. Their crystal structures were determined from single crystal X-ray data. NaKAl2O[AsO4]2 crystallizes with the orthorhombic K2Fe2O[AsO4]2-type, Pnma, a = 8.2368(6) , b = 5.5228(3) , c = 17.0160(13) and Z = 4, whereas Na2KAl3[AsO4]4 crystallizes with the orthorhombic K3Fe3[AsO4]4-type, Cmce, a = 10.5049(9), b = 20.482(2), c = 6.3574(6) and Z = 4. The NaKAl 2O[AsO4]2 structure is built up of [Al 2As2O9]2- layers perpendicular to the c-axis which are separated by A+ alkali layers. The [Al 2As2O9]2- layers consist of ribbons of edge-sharing AlO6 octahedra, running along the a direction and which are connected through AsO4 tetrahedra by sharing corners. The Na2KAl3[AsO4]4 structure contains [Al3As4O16]3- layers perpendicular to the b-axis separated by A+ alkali layers. The [Al 3As4O16]3- layer consists of a layer of corner-sharing AlO6 octahedra which are also connected to the AsO4 tetrahedra by sharing corners.

UR - http://www.scopus.com/inward/record.url?scp=78649321730&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649321730&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2010.07.009

DO - 10.1016/j.materresbull.2010.07.009

M3 - Article

AN - SCOPUS:78649321730

VL - 45

SP - 2017

EP - 2023

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

IS - 12

ER -