Na5(Ga4S)(GaS4)3·6H 2O: A three-dimensional thiogallate containing a novel octahedral building block

Jack Rumble, Paz Vaqueiro

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The new thiogallate Na5(Ga4S)(GaS4) 3·6H2O has been prepared solvothermally, using 3,5-dimethyl pyridine as a solvent, and characterised by powder and single crystal X-ray diffraction. This material, which exhibits a three-dimensional crystal structure, crystallises in the cubic space group F43c (a = 17.557(4) ). The crystal structure contains octahedral building blocks [Ga4S (GaS4)6]20-, linked into a three-dimensional network with a perovskite-type topology, and sodium hydrate clusters, [Na 5(H2O)6]5+, filling the cavities in the [Ga4S(GaS4)6/2]5- framework. UV-Vis diffuse reflectance measurements indicate that this material is a wide band gap semiconductor, with a band gap of ca. 4.4 eV. © 2011 Elsevier Masson SAS. All rights reserved.

Original languageEnglish
Pages (from-to)1137-1142
Number of pages6
JournalSolid State Sciences
Issue number5
Publication statusPublished - May 2011


  • Crystal structure determination
  • Gallium sulphide
  • Solvothermal synthesis


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