| 摘要 |
<p>A robust chelate complex is provided having the formula: wherein: M is a metal, preferably a transition metal; Z is an anionic donor atom, three of which are nitrogen, and the other is oxygen; L1 is a labile ligand; Ch1, Ch2 and Ch3 are oxidation resistant chelate groups which are the same or different and which form 5 or 6 membered rings with the metal, and Ch4 is a chelate group having the structure wherein R1 and R2 are the same or different and are preferably selected from the group consisting of hydrogen, halogen, methyl, and CF3 or when linked, a five or six membered ring cyclo substituent. The complex provides a stable, long-lived oxidation catalyst or catalyst activator.</p> |
