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Reaction of nitric oxide and silica-attached rhodium carbonyl complexes

Journal Article · · Journal of the American Chemical Society; (USA)
DOI:https://doi.org/10.1021/ja00196a007· OSTI ID:6946208

Reaction of the silica-bound rhodium {mu}-oxo carbonyl complex 1 with NO at 100{degree}C resulted in the formation of the rhodium oxygen adduct 2 (80%) and rhodium nitrate/nitrite complex (20%). CO{sub 2} formation was observed by IR analysis. Since no other nitrogen-containing products, particularly N{sub 2}O, either on the surface or in the gas phase, were observed, the authors propose that N{sub 2} formation accounts for the remaining nitrogen. Increasing the reaction temperature to 400{degree}C resulted in the decomposition of the rhodium nitrate/nitrite complex and the appearance of a nitrosyl species which was characterized by an NO stretching frequency at 1,890 cm{sup {minus}1}. Trace amounts of rhodium isocyanate, accounting for less than 2% of the total rhodium in the sample, were also produced. The carbonyl complex 1 was regenerated in both cases by reaction with CO at 100{degree}C; the rhodium nitrate/nitrite complex was unreactive toward CO.

OSTI ID:
6946208
Journal Information:
Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 111:14; ISSN 0002-7863; ISSN JACSA
Country of Publication:
United States
Language:
English