Reactions of tin and lead cluster anions with oxygen

✍ Scribed by Xiaoli Ren; Kent M. Ervin

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 462 KB
• Volume: 198
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)90077-z

✦ Synopsis

Rate constants at room temperature for the reactions of oxygen with Sn~ (n= 1-9) and Pb~-(n= 1-7) cluster anions are reported from flow-tube reactor kinetics measurements. A large variation in reactivity for different cluster sizes is observed, with reaction efficiencies ranging from 2% to 30% of the collision rate. The major primary anionic reaction products are small metal oxides containing one, two, or three metal atoms, indicating an etching type process. No oxide product anions are observed with more than three lead atoms or more than five tin atoms.