C2 Isomers of C84F40 and C84F44 Are Cuboid and Contain Benzenoid and Naphthalenoid Aromatic Patches

✍ Scribed by Adam D. Darwish; Natalia Martsinovich; Joan M. Street; Roger Taylor

• Book ID: 101834987
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 108 KB
• Volume: 11
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/chem.200500403

✦ Synopsis

Abstract

A 1:1 mixture of C~84~F~40~ and C~84~F~44~, both derived from the D~2~(IV) isomer, has been isolated from the fluorination of [84]fullerene with either MnF~3~ or CoF~3~ at 500 °C. The 1D and 2D COSY ^19^F NMR spectra showed that each derivative is cuboid, having benzenoid rings at four of the six octahedral sites; the two remaining sites have naphthalenoid rings for C~84~F~40~, and two slightly offset benzenoid rings for C~84~F~44~. The benzenoid rings each have six adjacent sp^3^‐hybridised carbon atoms whilst the naphthalenoid moieties have eight, thus facilitating full delocalisation. In terms of the number and size of aromatic patches, C~84~F~44~ is the most aromatic fullerene derivative yet isolated.