Bismuth-nitrogen synthesis

One of the simplest examples for such effects is the oxidation of ammonia with iron oxide-bismuth oxide as a catalyst. Here, the addition of bismuth oxide results in the formation of nitrous oxides as the main product whereas an iron oxide catalyst without bismuth oxide yields nitrogen almost exlcusively. Selectively guiding catalysts become increasingly important in the synthesis of organic compounds, e.g., in the hydrogenation of carbon monoxide where the type of obtainable product can be varied, within wide limits, by the kinds of catalysts and promoters which are employed. 

These metal-amine complexes are stable toward moisture and are soluble in organic solvents, leading to liquid precursors with appropriate viscosities for their deposition on substrates. Metal oxide thin films have been prepared from these amine-based precursors, including complex oxide thin films of titanium or bismuth-based perovskites, among others. The molecular structures of the titanium-amine and bismuth-amine complexes synthesized in a solution are shown in Scheme 27.6 [25-27]. In addition, the dative bond from the nitrogen toward the metallic center incorporates new functionalities into these types of molecules, such as photosensitivity, that can be used for nonconventional methods of synthesis of metal oxide thin films. 

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