“…42 Even metastable materials, such as ternary Ti 1-x Al x N coatings, can be realized due to relatively low processing temperatures of 510 • C. 43 In some cases it is possible to isolate and characterize metastable intermediate products on the way towards nitride formation, such as (SiCl 3 ) 2 N-N(SiCl 3 ) 2 and other species in a microwave-induced plasma in a mixture of N 2 and SiCl 4 . 44,45 In our investigations towards plasma-assisted synthesis of nitrides it was also possible to obtain new, metastable materials such as Ta 2 N 3 46 using the PECVD method. Interestingly, this…”
Basic properties of the plasma state are summarized, with the emphasis on low-pressure, non-isothermal, and cold plasma. The advantages of plasma activation in the synthesis of solid-state materials, especially nitrides, are discussed.
“…42 Even metastable materials, such as ternary Ti 1-x Al x N coatings, can be realized due to relatively low processing temperatures of 510 • C. 43 In some cases it is possible to isolate and characterize metastable intermediate products on the way towards nitride formation, such as (SiCl 3 ) 2 N-N(SiCl 3 ) 2 and other species in a microwave-induced plasma in a mixture of N 2 and SiCl 4 . 44,45 In our investigations towards plasma-assisted synthesis of nitrides it was also possible to obtain new, metastable materials such as Ta 2 N 3 46 using the PECVD method. Interestingly, this…”
Basic properties of the plasma state are summarized, with the emphasis on low-pressure, non-isothermal, and cold plasma. The advantages of plasma activation in the synthesis of solid-state materials, especially nitrides, are discussed.
Im Fokus sind Cluster aus Elementen der viertenHauptgruppe sowie ptutotypische kleine Molekule. Die Aktivierung von Distickstofi Katalyse und Uberstrukturen von Kafigmolekulen stehen exemplarisch fur Fottschritte in der Koordinationschemie. Nicht-Ham-Eisen-'Proteine, die geometrische und elektronische Struktur von Radikalkomplexen und der ,, Dauerbrenner" Modellverbindungen sind Teildisziplinen der Bioanorganischen Chemie mit reicher wissenschaftlicher Ernte. Nachrichten aus der Chemie 1 52 I Marz 2004 1 wwwgdch de Hauptgruppenelemente -+ Nachrichten aus der Chernie I 52 I Marz 2004 I www.gdch.de
Dark-blue sodium nitride, Na(3)N, was prepared by the reaction of metallic sodium or liquid Na-K alloy with plasma-activated nitrogen at low pressure. The compound crystallizes in the cubic anti-ReO(3)-type structure (space group Pm3m with a = 4.73301(6) Angstrom and Z = 1) according to powder and single-crystal X-ray diffraction data. Na(3)N decomposes above 104 degrees C into the elements, with DeltaH(f) estimated at +64(2) kJ/mol.
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