Hemibuckminsterfullerene C30H12: X-ray Crystal Structures of the Parent Hydrocarbon and of the Two-Dimensional Organometallic Network {[Rh2(O2CCF3)4]3⋅(C30H12)}

✍ Scribed by Marina A. Petrukhina; Kristian W. Andreini; Lingqing Peng; Lawrence T. Scott

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 212 KB
• Volume: 43
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.200460855

✦ Synopsis

Since the discovery of fullerenes, [1] bowl-shaped polyarenes that map onto the surface of C 60 have attracted considerable attention. [2] These geodesic fullerene fragments or "buckybowls" represent an exciting new class of aromatic ligands that exhibit unique chemistry. [2f] Substantial efforts have recently been directed toward studies of the reactivity and ligating properties of buckybowls, but very few of their transition metal complexes have been isolated. [3,4] Last year, we finally succeeded in preparing the first crystalline complexes of a geodesic polyarene, using the sublimationdeposition technique in a solvent-free environment with the smallest bowl-shaped polycyclic aromatic hydrocarbon, corannulene (1, C 20 H 10 , Figure 1). [4] The availability of crystallographic data allowed us to determine the preferred sites for metal binding to the curved unsaturated carbon surface of this open geodesic polyarene, and h 2 coordination of as many as three metal atoms to the rim carbon atoms of corannulene Figure 1. Corannulene (1) and hemifullerene (2). Pauling p-bond orders: a) 0.74, b) 0.28, c) 0.37, d) 0.

63, e) 0.37, f) 0.63, g) 0.37, h) 0.28, i) 0.51, j) 0.28, k) 0.37, l) 0.00, m) 0.23.