Three-dimensional gallium sulphide open framework

Vaqueiro, P. ORCID: https://orcid.org/0000-0001-7545-6262 and Romero, M.L. (2007) Three-dimensional gallium sulphide open framework. Journal of Physics and Chemistry of Solids, 68 (5-6). pp. 1239-1243. ISSN 0022-3697 doi: 10.1016/j.jpcs.2006.11.031

Abstract/Summary

The synthesis and crystal structure of four gallium sulphide open frameworks, built from supertetrahedral clusters, are described. The structures of [C4NH12]6[Ga10S18][C4NH12]6[Ga10S18](1) and [C4NH12]12[Ga20S35.5(S3)0.5O](2) contain supertetrahedral T3 clusters, while in the isostructural compounds [C4NH12]16[Ga10S18M4Ga16S33][C4NH12]16[Ga10S18M4Ga16S33] (M=CoM=Co(3), Zn (4)), T3 and T4 clusters alternate. These materials exhibit three-dimensional frameworks, with topologies consisting of two interpenetrating diamond lattices, and contain over 50% of solvent accessible void space. UV–Vis diffuse reflectance measurements indicate that these compounds are semiconducting, with band gaps over the range 3.4–4.1 eV.