A Novel BriggsRauscher Oscillation with a Macrocyclic Nickel(II) Complex as Catalyst and Pentane-2,4-dione as the Substrate

✍ Scribed by Gang Hu; Fu-Sheng Zhao; Ming-Ying Lu; Ling Zhu; Mi-Mi Guo; Hai-Yan Liu; Lin Hu

• Book ID: 102257536
• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: German
• Weight: 275 KB
• Volume: 94
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.201000363

✦ Synopsis

Abstract

A new Briggs____Rauscher oscillating reaction with a tetraazamacrocyclic nickel(II) complex NiL~2~ as catalyst and pentane‐2,4‐dione (pe) as the substrate is reported. The ligand L is 5,7,7,12,14,14‐hexamethyl‐1,4,8,11‐tetraazacyclotetradeca‐4,11‐diene. The experimental results indicate that iodine ion may be an important intermediate, and free radicals can be involved in the reaction. A tentative mechanism based on Noyes____Furrow model (NF model) is proposed. Moreover, other factors, such as the variation of concentration of the components and temperature on the oscillator, are discussed.