Synthesis and characterization of two novel mixed metal tellurates: KGaTeO5 x H2O and K3GaTe2O8(OH)2 x H2O.
Single crystals of KGaTeO5 x H2O and K3GaTe2O8(OH)2 x H2O have been synthesized by supercritical hydrothermal techniques using Te(OH)6, Ga2O3 and KOH as reagents, and characterized by single crystal X-ray diffraction, thermal analysis, IR and Raman spectroscopy. Ion-exchange studies revealed KGaTeO5 x H2O, with its open-framework structure, is capable of exchanging both smaller (Na+) and larger (Rb+) ions. In addition, higher thermal stability and reversible hydration properties were observed for KGaTeO5 x H2O.
Yu
Ranbo
R
Department of Chemistry, University of Houston, 4800 Calhoun Blvd., Houston, Texas 77204-5003, USA.
Min Ok
Kang
K
Shiv Halasyamani
P
P
D018360:Crystallography, X-Ray; D005708:Gallium / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry; D011188:Potassium / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*
D009942:Organometallic Compounds; D005708:Gallium; D013691:Tellurium; D011188:Potassium