Dirubidium Digallium Oxide Bis(orthoborate)

Robert W. Smith, University of Nebraska at Omaha
Chunhua Hu, University of Nebraska-Lincoln
Christopher D. DeSpain, University of Nebraska at Omaha

Published in Acta Crystallographica Section E64, i23, 2008. Copyright © 2008, Acta Crystallographica. Used by permission.


The title compound, Rb2Ga2O(BO3)2, is part of the homologous series A2Ga2O(BO3)2 (A = Na, K, Rb and Cs). The structure contains pairs of gallium-centered tetrahedra connected through a shared oxygen vertex. Orthoborate triangles connect the basal vertices of the tetrahedra, forming a three-dimensional network with voids occupied by rubidium ions.