½ž ËÙÑÑ ÖÝ Ó ×× ÖØ Ø ÓÒ ½ž½ž Ñ Ó ×× ÖØ Ø ÓÒ The aim of this thesis was to solve and describe the crystal struc- ture of selected inorganic phosphates. Nine different compounds have been studied, including the NASICON type phosphates Co0.5Ti2(PO4)3, Mn0.5Ti2(PO4)3, Na3.215Fe2(PO4)3, the iron(II) diphosphate Fe2P2O7 and hydrates of rare-earth hydrogen diphosphates LnHP2O7·3H2O (Ln = Y, Tb, Dy, Yb) and TbHP2O7·4H2O. While NASICON type phos- phates and rare-earth hydrogen diphosphates have a conventional three- dimensional crystal structure, the structure of α-Fe2P2O7 is incommen- surately modulated and has been described in (3+1)-dimensional super- space. ½ž¾ž ÇÚ ÖÚ Û Ó Ø ÓÒØ ÒØ Ó ×× ÖØ Ø ÓÒ Dissertation is divided in six parts. Part 1 introduce the crystal struc- ture analysis, the concept of aperiodic crystals and the superspace ap- proach. Part 2 describes course of X-ray diffraction experiment and used experimental equipment. The next three parts, Part 3, Part 4 and Part 5, in which the structures of NASICON-type phospates, iron(II) diphos- phate, and rare-earth hydrogen diphosphates are discussed, are the main parts of this work. Part 1. Introduction and Initiation Chapter 2, "Basic principles of crystal structure analysis" con- cerns by fundamentals of crystal structure analysis, i.e. behaviour of X-...
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:299193 |
| Date | January 2010 |
| Creators | Fejfarová, Karla |
| Contributors | Mička, Zdeněk, Žák, Zdirad, Sýkora, Jan |
| Source Sets | Czech ETDs |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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