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Title: A cluster with a mixed M{sub 6}X{sub 12}/M{sub 6}X{sub 8} environment: The La{sub 6}Cl{sub 11}Co structure

The title compound was synthesized from La, LaCl{sub 3} and Co under Ar atmosphere at 800 deg. C. It crystallizes in space group P4{sub 2}/n (no. 86) with lattice constants a=11.308(2) A and c=14.441(3) A. The structure features an isolated Co-centered La{sub 6} octahedron with all corners and edges, and 2 of its 8 triangular faces coordinated by Cl atoms. The La{sub 6}Co octahedron is significantly distorted, and the La coordination by Cl atoms deviates from the common close-packing arrangements found in other reduced rare earth metal halides. Structure, bonding and physical properties of the compound have been investigated. - Graphical abstract: La{sub 6}Cl{sub 11}Co octahedron exhibiting a mixed M{sub 6}X{sub 12}/M{sub 6}X{sub 12} coordination environment.
Authors:
 [1] ; ; ;  [2]
  1. Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115 (United States)
  2. Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
21370556
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 182; Journal Issue: 8; Other Information: DOI: 10.1016/j.jssc.2009.06.002; PII: S0022-4596(09)00254-0; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT; COBALT CHLORIDES; LANTHANUM; LANTHANUM CHLORIDES; LATTICE PARAMETERS; PHYSICAL PROPERTIES; SPACE GROUPS; TEMPERATURE RANGE 1000-4000 K; TETRAGONAL LATTICES CHLORIDES; CHLORINE COMPOUNDS; COBALT COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; LANTHANUM COMPOUNDS; METALS; RARE EARTH COMPOUNDS; RARE EARTHS; SYMMETRY GROUPS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS