I  U  P  A  C

News & Notices

Organizations & People

Standing Committees




. . CI
. . PAC
. . Macro. Symp.

. . Books
. . Solubility Data



Links of Interest

Search the Site

Home Page


Pure Appl. Chem. Vol. 73, No. 2, pp. 287-289 (2001)

Pure and Applied Chemistry

Vol. 73, Issue 2

New methods for the synthesis of transition-metal fullerene complexes*

David M. Thompson**, Jason McLeod, and Michael C. Baird

Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada

Abstract: Buckminsterfullerene, C60, is readily reduced on exposure to solutions of strongly reducing transition-metal carbonylate anions to give the radical anion fulleride C60- and the corresponding highly reactive, 17-electron neutral compounds. Three secondary reaction paths have been identified, depending on the nature of the reactants and the reaction conditions. (1) With Na+ and PPN+ salts of [Mn (CO) 5]-, thermal substitution of a CO on the metal radical by the C60-results in formation of the anionic, h2-fullerene complex [Mn (C60) (CO) 4]- . (2) With salts of [Co (CO) 4]-, the thermal reaction results in formation of a novel transition-metal fulleride NaCoC60 while (3) with Na[CpFe (CO) 2] and [CpM (CO) 3]- (M = Mo, W) , the 17-electron intermediates couple to form the 18-electron dimers, [CpFe (CO) 2]2 and [CpM (CO) 3]2. In contrast, photochemical reactions of C60 with salts of [Mn (CO) 5]-, [Co (CO) 4]-, and [CpM (CO) 3]- result in excellent yields of the complexes [Mn (C60) (CO) 4]- , [Co (C60) (CO) 3]- and [CpM (C60) (CO) 2]- , respectively; analogous complexes of C70 may be made similarly. The new complexes have been characterized crystallographically, by IR, 13C NMR, and/or Raman spectroscopy and by electrospray mass spectrometry.

* Lecture presented at the XIXth International Conference on Organometallic Chemistry (XIX ICOMC) , Shanghai, China, 23-28 July 2000. Other presentations are published in this issue, pp. 205-376.
** Corresponding author

Back to Contents for access to full text

Page last modified 7 May 2001.
Copyright © 2001 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.