Theory of High-Temperature Superconducting Phases in Rare-Earth Metal Compounds

1990 ◽  
pp. 100-111
Author(s):  
Maxim A. Savchenko ◽  
Alexei V. Stefanovich
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Metal Compounds ◽  
High Temperature Superconducting ◽  
Superconducting Phases

Fixation of molecular nitrogen by rare-earth metal compounds

1986 ◽  
Vol 35 (8) ◽  
pp. 1726-1728 ◽  
Author(s):  
M. N. Bochkarev ◽  
A. A. Trifonov ◽  
G. A. Razuvaev ◽  
M. A. Ilatovskaya ◽  
V. B. Shur
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Molecular Nitrogen ◽  
Earth Metal ◽  
Metal Compounds

Effectiveness of Rare-Earth Metal Compounds as Corrosion Inhibitors for Steel

CORROSION ◽  
2002 ◽  
Vol 58 (11) ◽  
pp. 953-960 ◽  
Author(s):  
M. Forsyth ◽  
K. Wilson ◽  
T. Behrsing ◽  
C. Forsyth ◽  
G. B. Deacon ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Corrosion Inhibitors ◽  
Earth Metal ◽  
Metal Compounds

Die monoklinen Seltenerdmetall(III)-Chlorid-Oxidoarsenate(III) mit der Zusammensetzung SE5Cl3[AsO3]4 (SE=La–Nd, Sm)

2019 ◽  
Vol 74 (6) ◽  
pp. 497-506 ◽  
Author(s):  
Felix C. Goerigk ◽  
Svetlana Schander ◽  
Makram Ben Hamida ◽  
Dong-Hee Kang ◽  
Florian Ledderboge ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Lone Pair ◽  
Earth Metal ◽  
Metal Compounds ◽  
Coordination Polyhedra ◽  
Electron Pairs ◽  
Space Groups ◽  
Coordination Numbers ◽  
Oxygen Atoms

AbstractThe rare earth metal(III) chloride oxidoarsenates(III) with the composition RE5Cl3[AsO3]4 (RE = La–Nd, Sm) could be synthesized via solid-state methods through the reaction of arsenic sesquioxide (As2O3) with the corresponding rare earth metal compounds (La2O3, CeO2 + metallic Ce, Pr6O11, Nd2O3 or metallic Sm) using several chloride-containing fluxing agents in evacuated silica glass ampoules. The compounds build up non-isotypic crystal structures in the monoclinic space groups C2/c for RE = La–Pr, and P2/c for RE = Nd and Sm. All rare earth metal(III) cations exhibit coordination numbers of eight. While (RE1)3+ and (RE2)3+ are only surrounded by oxygen atoms in the form of distorted square antiprisms or prisms, (RE3)3+ is coordinated square antiprismatically by four oxygen atoms and four chloride anions. Although the coordination polyhedra in both structures differ only marginally, their connection patterns show more pronounced differences. This regards especially the (RE)3+ cations and results from different site symmetries of the (Cl1)− anions. All As3+ lone-pair cations are coordinated by three oxygen atoms to form ψ1-tetrahedral [AsO3]3− complex anions with their non-binding (lone) electron pairs pointing into empty channels along [010].

To the theory of the superconductive phase in rare earth metal compounds

1982 ◽  
Vol 44 (7) ◽  
pp. 1031-1036 ◽  
Author(s):  
M.A. Savchenko ◽  
A.V. Stephanovich
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Metal Compounds ◽  
Superconductive Phase
Sign in / Sign up

Export Citation Format

Share Document