Structure of Ti2P solved by three-dimensional electron diffraction data collected with the precession technique and high-resolution electron microscopy.
Acta Crystallogr A
; 59(Pt 2): 117-26, 2003 Mar.
Article
em En
| MEDLINE
| ID: mdl-12604849
ABSTRACT
The crystal structure of Ti(2)P has been analysed using electron diffraction and high-resolution electron-microscopy techniques. A new unit cell was found, the compound is hexagonal with a = 19.969 (1) and c = 3.4589 (1) A. The structure was first solved in space group P-62m in projection using direct methods on electron diffraction data from the [001] zone axis. A three-dimensional solution was obtained using again direct methods but on a three-dimensional set of electron diffraction data recorded with the precession technique. Ti(2)P is a distorted Fe(2)P structure and, based on high-resolution images, it is possible to explain that the tripling of the unit cell is due to the ordering of P vacancies that reduces the symmetry to P-6.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Acta Crystallogr A
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Suécia