eta(6)-coordination of the curved carbon surface of corannulene (C20H10) to (eta(6)-arene)M2+ (M = Ru, Os)

Titleeta(6)-coordination of the curved carbon surface of corannulene (C20H10) to (eta(6)-arene)M2+ (M = Ru, Os)
Publication TypeJournal Article
Year of Publication2007
AuthorsZhu BL, Ellern A, Sygula A, Sygula R, Angelici RJ
Journal TitleOrganometallics
Volume26
Pages1721-1728
Date PublishedMar
Type of ArticleArticle
ISBN Number0276-7333
Accession NumberISI:000244958600026
KeywordsARENE, complexes, COORDINATION CHEMISTRY, ELECTRONIC COMMUNICATION, METAL PARACYCLOPHANE COMPOUNDS, molecular-structure, PHYSICAL-PROPERTIES, ray crystal-structure, SANDWICH-COMPLEX, TERTIARY PHOSPHINES, x-ray
Abstract

Reactions of [(eta(6)-arene)M(acetone)(3)]X-2 (M = Ru, Os; X = BF4, PF6, or SbF6) with 1 equiv of the curved-surface buckybowl, corannulene (C20H10, 1), in CD3NO2 afford quantitatively the eta(6)-coordinated complexes [(eta(6)-C6Me6)Ru(eta(6)-C20H10)]X-2 (3a, X = SbF6; 3b, X = PF6; 3c, X = BF4), [(eta(6)-C6HMe5)Ru(eta(6)-C20H10)](SbF6)(2) (4), [(eta(6)-C6EtMe5)Ru(eta(6)-C20H10)](SbF6)(2) (5), and [(eta(6)-cymene)Os(eta(6)-C20H10)](SbF6)(2) (6). In the solid state, yellow complexes 3-6 are stable in dry air for several months and have all been characterized by their H-1, C-13{H-1}, and COSY NMR, mass spectra, elemental analyses, and X-ray diffraction; the corannulene in the complexes is slightly flattened as compared with free corannulene, 1. Even in the presence of excess [(eta(6)-arene)M(acetone)(3)]X-2, it was not possible to add two (eta(6)-arene)M2+ units to 1. The corannulene ligand in 3a is susceptible to nucleophilic attack by phosphines to give a mixture of adducts.

DOI10.1021/om0610795
Alternate JournalOrganometallics