ChemInform Abstract: The High‐Pressure Polymorph of Ca4Te5O14 and the Mixed‐Valent Compound Ca13TeVI2/3TeIV3.75 O15(BO3)4(OH)3. Issue 41 (September 2016)

• Record Type: Journal Article
• Authors: Weil, Matthias; Heymann, Gunter; Huppertz, Hubert
• Is Part Of: ChemInform. Volume 47:Issue 41(2016)
• Page Start: no
• Page End: no
• Publication Date: 2016-09
• Subjects: calcium, Ca -- tellurium, Te -- boron, B -- structure (solids and liquids); Chemistry -- Abstracts -- Periodicals; 540.5
• DOI: 10.1002/chin.201641013
• Languages: English
• ISSNs: 0931-7597

Abstract

Abstract: Hot press annealing of a stoichiometric mixture of Ca(OH)2 and TeO2 yields a high‐pressure modification of Ca4 Te5 O14 (I) (h‐BN crucible in multianvil press, 8 GPa, 900 °C, 10 min) and minor amounts of Ca13 Te VI 2/3 Te IV 3.75 O15 (BO3 )4 (OH)3 (II) resulting from the reaction with the h‐BN crucible used in the high‐pressure set‐up.