ORCID: https://orcid.org/0000-0003-4571-8035
(2009):
Pr5Si3N9.
In: Acta Crystallographica, Bd. E65, Nr. 6:
I43
[PDF, 907kB]
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Abstract
Single crystals of Pr5Si3N9, pentapraseodymium trisilicon nonanitride, were obtained by the reaction of elemental praseodymium with silicon diimide in a radio-frequency furnace at 1873 K. The crystal structure consists of a chain-like Si-N substructure of corner-sharing SiN4 tetrahedra. An additional Q1-type [SiN4] unit is attached to every second tetrahedron directed alternately in opposite directions. The resulting branched chains interlock with each other, building up a three-dimensional structure. The central atoms of the Q1-type [SiN4] unit and of its attached tetrahedron are situated on a mirror plane, as are two of the four crystallographically unique Pr3+ ions. The latter are coordinated by six to ten N atoms, with Pr-N distances similar to those of other rare earth nitridosilicates.
Dokumententyp: | Zeitschriftenartikel |
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Publikationsform: | Publisher's Version |
Fakultät: | Chemie und Pharmazie |
Themengebiete: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
URN: | urn:nbn:de:bvb:19-epub-14450-4 |
ISSN: | 1600-5368 |
Sprache: | Englisch |
Dokumenten ID: | 14450 |
Datum der Veröffentlichung auf Open Access LMU: | 28. Jan. 2013, 14:26 |
Letzte Änderungen: | 04. Nov. 2020, 12:54 |