%0 Journal Article %A E. W. Vaughan, D. %A Yennawar, H. P. %A Perrotta, A. J. %D 2006 %T Synthesis and Structure of Large Optically Clear Crystals of Gallogermanate Sodalite %U https://acs.figshare.com/articles/journal_contribution/Synthesis_and_Structure_of_Large_Optically_Clear_Crystals_of_Gallogermanate_Sodalite/3060613 %R 10.1021/cg060164c.s001 %2 https://ndownloader.figshare.com/files/4766371 %K structure studies %K gallogermanate %K encapsulated chemical species %K framework %K Gallogermanate SodaliteLarge %K space group %K Large Optically Clear Crystals %K sodalite %K Synthesi %K 800 μ m %K sodium tetramethylammonium hydroxide solutions %K analysis %K crystal %K length %K bond %X Large transparent crystals (up to 800 μm) of a hydroxy-sodium gallogermanate sodalite have been prepared at between 100 and 150 °C in aqueous sodium tetramethylammonium hydroxide solutions. Single-crystal structure analysis gave the expected space group (P4̄3n) but an unexpectedly small unit cell (8.951 Å) in which the longer (Ga,Ge)−O bond lengths are compensated by T−O−T bond angles of ∼110°. The crystals provide a readily made framework for structure studies of encapsulated chemical species. %I ACS Publications