V₁₈P₉C₂

Autor(en)

Herbert Boller, Herta Silvia Effenberger

Abstrakt

V18 P9 C2 crystallizes in the orthorhombic space group Pmma with the lattice parameters a = 17.044(3), b = 3.2219(7), and c = 13.030(2) Å, Z = 2. The crystal structure is composed of 19 symmetry-independent atoms. The crystal structure is considered as a network formed by the transition metal atoms exhibiting cubic, trigonal prismatic, and octahedral voids centered by V, P, and C atoms, respectively. Vice versa, the V and P atoms form a three-dimensional network. The two CV6 octahedra are edge- and corner-connected to chains running parallel to [010]. The five unique P atoms are trigonal prismatically coordinated by V atoms with one to three faces capped again by a V atom. The V atoms have mainly cubic environments formed solely by V or by V and P atoms. V18 P9 C2 exhibits some structural relations to other compounds of the ternary system V-P-C as well as to other intermetallic phases. Despite the low carbon content, V18 P9 C2 is considered as a ternary compound rather than an interstitially stabilized (binary) phosphide in view of its special structural features. Carbide crystal chemistry Phosphide pnictide Ternary compound Topology V18P9C2.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Johannes Kepler Universität Linz

Journal

Zeitschrift für Naturforschung. Section B: A Journal of Chemical Sciences

Band

71

Seiten

521-526

Anzahl der Seiten

6

ISSN

0932-0776

DOI

https://doi.org/10.1515/znb-2016-0012

Publikationsdatum

05-2016

Peer-reviewed

Ja

ÖFOS 2012

104011 Materialchemie, 105113 Kristallographie

Schlagwörter

ASJC Scopus Sachgebiete

Chemistry(all)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/v18p9c2(4ab998c4-d4bd-47ad-816a-4c777e512571).html