New reduced zirconium halide phases from high temperature reactions
The number of reduced phases known in the Zr-ZrX/sub 4/ systems (X = F, Cl, Br, I) has recently been increased considerably by the results of high temperature equilibrations and transport reactions in sealed tantalum containers. Syntheses and properties are considered for the six new phases characterized structurally, namely, the double metal sheet structures of the metallic ZrCl and ZrBr, the single metal layers of ZrCl/sub 2/ (3R-NbS/sub 2/ type), and the first isolated zirconium clusters which occur in (Zr/sub 6/Cl/sub 12/)Cl/sub 3/, Zr/sub 6/I/sub 12/ and Zr/sub 6/Cl/sub 12/. The appreciable phase breadths which have been established for the ZrCl/sub 3/, ZrBr/sub 3/ and ZrI/sub 3/ phases are also presented together with x-ray powder diffraction evidence on the process.
- Research Organization:
- Ames Lab., Iowa (USA)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5283769
- Report Number(s):
- IS-M-117; CONF-771060-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and nonstoichiometry of the zirconium trihalides
Core photoelectron shifts in reduced zirconium halides. Relaxation effects and delocalized metal-metal bonding
Related Subjects
400201* -- Chemical & Physicochemical Properties
BROMIDES
BROMINE COMPOUNDS
CHEMICAL PREPARATION
CHEMICAL PROPERTIES
CHLORIDES
CHLORINE COMPOUNDS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
HALIDES
HALOGEN COMPOUNDS
IODIDES
IODINE COMPOUNDS
LATTICE PARAMETERS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
VALENCE
ZIRCONIUM BROMIDES
ZIRCONIUM CHLORIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM IODIDES