Organometallic chemistry of fullerenes: ?2- and ?5-(?)complexes

✍ Scribed by Haddon, R. C.

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 190 KB
• Volume: 19
• Category: Article
• ISSN: 0192-8651
• DOI: 10.1002/(sici)1096-987x(19980130)19:2<139::aid-jcc6>3.0.co;2-v

✦ Synopsis

The reactivity of the fullerenes is primarily a function of their strain, as measured by the pyramidalization angle or curvature of the conjugated carbon atoms. A consideration of the orientation of the -orbitals shows that 2 -complexation reactions lead to reaction products with the fullerenes that are very similar to those obtained from unstrained alkenes. Furthermore, a large amount of strain energy is released in this reaction, so it is clear just why this reaction is important in fullerene chemistry. On the other hand, it is shown that the -orbitals of C are poorly oriented for overlap with an exohedral metal 60 atom centered over the five-or six-membered rings, but well disposed for overlap with an endohedral metal atom centered under the five-or six-membered rings.