Beiträge zur Darstellung binärer und ternärer Nitride der Elemente Ga, Ru, Rh, Pd, Au, U
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Date
2002-11-25
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Universität Dortmund
Abstract
Die Dissertation beinhaltet Untersuchungen zur Darstellung binärer und ternärer Nitride der Elemente Ga, Ru, Rh, Pd, Au und U. Die Systeme Li-M-N (M = Ru, Rh, Pd, U), Na-M-N (M = Ga, Ru, Rh, Pd, U), Ca-U-N und Sr-Au-N werden diskutiert.Hervorzuheben sind die Verbindungen LiUN2, Li2UN2 und (Ca0,25U0,75)N0,96, die mittels Röntgenbeugungs- und teilweise mit Neutronenbeugungsmethoden charakterisiert wurden. In den Systemen Li-M-N (Ru, Rh, Pd) und Na-M-N (M = Ga, Ru, Rh, Pd, U) wurde die Bildung ternärer Nitride nicht beobachtet. Umsetzungen von NaNH2 mit Rh führten zur Bildung von Na3RhH6, das mit Röntgenbeugungsmethoden an Einkristallen untersucht werden konnte. Umsetzungen von Na/NaNH2/NaN3-Gemengen mit Ga führten in Abhängigkeit von der maximalen Reaktionstemperatur zur Bildung von einkristallinem a-GaN oder zur Bildung von NaGa(NH2)NH.Desweiteren konnten die Strukturen von SrAu5, Ga3Ni2, K11[(SiO4)2](OCN)2H mittels Einkristallröntgenstrukturanalyse bestimmt werden.
This PhD thesis contents investigations of the synthesis of binary and ternary nitrides with the elements Ga, Ru, Rh, Pd, Au and U. The ternary systems Li-M-N (M = Ru, Rh, Pd, U), Na-M-N (M = Ga, Ru, Rh, Pd, U) Ca-U-N and Sr-Au-N were discussed.The compounds LiUN2, Li2UN2 and (Ca0,25U0,75)N0,96 were determined by using x-ray powder diffraction and neutron scattering methods.The formation of ternary nitrides were not investigated in the systems Li-M-N (Ru, Rh, Pd) and Na-M-N (M = Ga, Ru, Rh, Pd, U). Reactions of NaNH2 with Rh have shown the formation of Na3RhH6, which was determined with single crystal techniques. Reactions of Na/NaNH2/NaN3-mixtures with Ga were used to obtain crytalline a-GaN. At lower temperatures the formation of NaGa(NH2)NH was investigated.The structures of SrAu5, Ga3Ni2, K11[(SiO4)2](OCN)2H were determined by using single crystal methods.
This PhD thesis contents investigations of the synthesis of binary and ternary nitrides with the elements Ga, Ru, Rh, Pd, Au and U. The ternary systems Li-M-N (M = Ru, Rh, Pd, U), Na-M-N (M = Ga, Ru, Rh, Pd, U) Ca-U-N and Sr-Au-N were discussed.The compounds LiUN2, Li2UN2 and (Ca0,25U0,75)N0,96 were determined by using x-ray powder diffraction and neutron scattering methods.The formation of ternary nitrides were not investigated in the systems Li-M-N (Ru, Rh, Pd) and Na-M-N (M = Ga, Ru, Rh, Pd, U). Reactions of NaNH2 with Rh have shown the formation of Na3RhH6, which was determined with single crystal techniques. Reactions of Na/NaNH2/NaN3-mixtures with Ga were used to obtain crytalline a-GaN. At lower temperatures the formation of NaGa(NH2)NH was investigated.The structures of SrAu5, Ga3Ni2, K11[(SiO4)2](OCN)2H were determined by using single crystal methods.
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Binäre Nitride, Ternäre Nitride, Ternäre Hydride, Darstellung, Strukturbestimmung, Neutronenbeugung, Uran, Ruthenium, Rhodium, Palladium, Gold, Gallium, Lithium, Natrium, Calcium, Strontium, binary nitrides, ternary nitrides, ternary hydrides, synthesis, structure determination, neutron scattering, Uranium, Ruthenium, Rhodium, Palladium, Gold, Gallium, Lithium, Sodium, Calcium, Strontium