title: Structure of LaTi2Al9O19 and reanalysis of the crystal structure of La3Ti5Al15O37.
abstract: The non-perovskite compound LaTi(2)Al(9)O(19) was synthesized and structurally characterized by conventional X-ray powder diffraction and shown to be isostructural with SrTi(3)Al(8)O(19), as confirmed by bond-valence sum calculations. The dielectric properties of LaTi(2)Al(9)O(19) at 1 MHz were measured. The crystal structure of La(3)Ti(5)Al(15)O(37), which is referred to as the most complex structure solved ab initio from X-ray powder diffraction (XRPD) to date, is shown to be incorrect.
authors.affiliation: Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, Ljubljana 1000, Slovenia.
authors.forename: Marta
authors.initials: M
authors.lastname: Kasunič
authors.forename: Anton
authors.initials: A
authors.lastname: Meden
authors.forename: Srečo D
authors.initials: SD
authors.lastname: Škapin
authors.forename: Danilo
authors.initials: D
authors.lastname: Suvorov
authors.forename: Amalija
authors.initials: A
authors.lastname: Golobič