The crystal structure of PbFe[AsO4][AsO3(OH)].
- Author(s)
- Herta Silvia Effenberger, Clivia Hejny, Franz Pertlik
- Abstract
IR spectra of a natural CaTiO3 perovskite single-crystal showed 2 absorption bands at 3394 and 3326 cm-1 which are attributed to structural OH defects. The 2 bands are weakly pleochroic in a (001) section, but show a more distinct anisotropic behavior in (110) with a stronger component of absorption perpendicular to [001]. A plausible model for the mode of OH incorporation on a preferred at. position is derivable under the assumption of vacancies in the Ca lattice. An OH dipole direction roughly pointing along [110] with O2 oxygens acting as donor oxygens is consistent with the measured pleochroic scheme of the bands.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- University of Vienna
- Journal
- Monatshefte für Chemie
- Volume
- 127
- Pages
- 127-133
- No. of pages
- 6
- ISSN
- 0026-9247
- DOI
- https://doi.org/10.1007/BF00807393
- Publication date
- 02-1996
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105116 Mineralogy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/b910f191-f1da-4b93-acd4-fd00c5eb2554