K(Th0.75Sr0.25)2Se6: Structural Change Resulting from the Disorder of Differently Charged Cations

Adel Mesbah, Jai Prakash, Jessica C. Beard, Christos D. Malliakas, James A Ibers

Research output: Contribution to journalArticle

Abstract

Single crystals of K(Th0.75Sr0.25)2Se6 were obtained by a standard solid-state chemistry route at 1173 K. This compound does not belong to the AAn2Q6 family (A = K, Rb, Cs, or Tl; An = Th, U, or Np; Q = S, Se, or Te) that possesses infinite Q-Q-Q chains and where a charge distribution of A+, 2 × An4+, 2 × Q2-, 2 × (Q2 2.5-) has been proposed and hence a charge of -1.25 on Q of the "dichalcogenide". Rather in K(Th0.75Sr0.25)2Se6, where the Th and Sr cations randomly occupy the same site, incorporation of these differently charged cations breaks the infinite Se-Se-Se chains into a structure that has typical Se2 2- pairs.

Original languageEnglish (US)
Pages (from-to)7877-7880
Number of pages4
JournalInorganic Chemistry
Volume57
Issue number13
DOIs
StatePublished - Jul 2 2018

Fingerprint

Cations
disorders
cations
Charge distribution
charge distribution
routes
Single crystals
chemistry
solid state
single crystals

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Mesbah, Adel ; Prakash, Jai ; Beard, Jessica C. ; Malliakas, Christos D. ; Ibers, James A. / K(Th0.75Sr0.25)2Se6 : Structural Change Resulting from the Disorder of Differently Charged Cations. In: Inorganic Chemistry. 2018 ; Vol. 57, No. 13. pp. 7877-7880.
@article{78711ccf7dc2442e8139e84101be33fb,
title = "K(Th0.75Sr0.25)2Se6: Structural Change Resulting from the Disorder of Differently Charged Cations",
abstract = "Single crystals of K(Th0.75Sr0.25)2Se6 were obtained by a standard solid-state chemistry route at 1173 K. This compound does not belong to the AAn2Q6 family (A = K, Rb, Cs, or Tl; An = Th, U, or Np; Q = S, Se, or Te) that possesses infinite Q-Q-Q chains and where a charge distribution of A+, 2 × An4+, 2 × Q2-, 2 × (Q2 2.5-) has been proposed and hence a charge of -1.25 on Q of the {"}dichalcogenide{"}. Rather in K(Th0.75Sr0.25)2Se6, where the Th and Sr cations randomly occupy the same site, incorporation of these differently charged cations breaks the infinite Se-Se-Se chains into a structure that has typical Se2 2- pairs.",
author = "Adel Mesbah and Jai Prakash and Beard, {Jessica C.} and Malliakas, {Christos D.} and Ibers, {James A}",
year = "2018",
month = "7",
day = "2",
doi = "10.1021/acs.inorgchem.8b00925",
language = "English (US)",
volume = "57",
pages = "7877--7880",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
number = "13",

}

K(Th0.75Sr0.25)2Se6 : Structural Change Resulting from the Disorder of Differently Charged Cations. / Mesbah, Adel; Prakash, Jai; Beard, Jessica C.; Malliakas, Christos D.; Ibers, James A.

In: Inorganic Chemistry, Vol. 57, No. 13, 02.07.2018, p. 7877-7880.

Research output: Contribution to journalArticle

TY - JOUR

T1 - K(Th0.75Sr0.25)2Se6

T2 - Structural Change Resulting from the Disorder of Differently Charged Cations

AU - Mesbah, Adel

AU - Prakash, Jai

AU - Beard, Jessica C.

AU - Malliakas, Christos D.

AU - Ibers, James A

PY - 2018/7/2

Y1 - 2018/7/2

N2 - Single crystals of K(Th0.75Sr0.25)2Se6 were obtained by a standard solid-state chemistry route at 1173 K. This compound does not belong to the AAn2Q6 family (A = K, Rb, Cs, or Tl; An = Th, U, or Np; Q = S, Se, or Te) that possesses infinite Q-Q-Q chains and where a charge distribution of A+, 2 × An4+, 2 × Q2-, 2 × (Q2 2.5-) has been proposed and hence a charge of -1.25 on Q of the "dichalcogenide". Rather in K(Th0.75Sr0.25)2Se6, where the Th and Sr cations randomly occupy the same site, incorporation of these differently charged cations breaks the infinite Se-Se-Se chains into a structure that has typical Se2 2- pairs.

AB - Single crystals of K(Th0.75Sr0.25)2Se6 were obtained by a standard solid-state chemistry route at 1173 K. This compound does not belong to the AAn2Q6 family (A = K, Rb, Cs, or Tl; An = Th, U, or Np; Q = S, Se, or Te) that possesses infinite Q-Q-Q chains and where a charge distribution of A+, 2 × An4+, 2 × Q2-, 2 × (Q2 2.5-) has been proposed and hence a charge of -1.25 on Q of the "dichalcogenide". Rather in K(Th0.75Sr0.25)2Se6, where the Th and Sr cations randomly occupy the same site, incorporation of these differently charged cations breaks the infinite Se-Se-Se chains into a structure that has typical Se2 2- pairs.

UR - http://www.scopus.com/inward/record.url?scp=85049495872&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049495872&partnerID=8YFLogxK

U2 - 10.1021/acs.inorgchem.8b00925

DO - 10.1021/acs.inorgchem.8b00925

M3 - Article

VL - 57

SP - 7877

EP - 7880

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 13

ER -