Lanthanum (Oxo)nitridosilicates: From Ordered to Disordered Crystal Structures

Durach, Dajana und Schnick, Wolfgang (2016): Lanthanum (Oxo)nitridosilicates: From Ordered to Disordered Crystal Structures. In: Zeitschrift für Anorganische und Allgemeine Chemie, Bd. 642, Nr. 2: S. 101-106

Abstract

The homeotypic compounds La16.32Ba1.82Sr7.86-[Si60N92.32O3.68]O-12 and La13.68Sr12.32[Si60N96]F6.32O5.68 were synthesized at high temperature (1600/1500 degrees C) in a radio-frequency furnace. The crystal structures [I (4) over barm (no. 217), Z = 1, a = 13.3360(10)/13.3258(10) A and = 2371.8(5)/2366.4(5) angstrom(3)] were solved and refined on basis of single-crystal X-ray diffraction data and were corroborated by lattice-energy calculations (Madelung part of lattice energy, MAPLE) powder X-ray diffraction data and FTIR spectroscopy. They consist of a three-dimensional network of allside corner sharing

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 0044-2313
• Sprache: Englisch