4.8 Article

A New exTTF-Crown Ether Platform To Associate Fullerenes: Cooperative n-π and π-π Effects

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 49, Pages 17387-17389

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja108744a

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Funding

  1. MICINN of Spain [CTQ2008-00795/BQU]
  2. CAM [MADRISOLAR-2 S2009/PPQ-1533]
  3. Consolider Ingenio [CSD 2006-0003]
  4. Fonds der Chemischen Industrie (FCI)
  5. Deutsche Forschungsgemeinschaft [SFB 583]
  6. Exzellenzcluster EAM-Engineering of Advanced Materials

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A new and readily available exTTF-bis(crown ether), 1, efficiently recognizes C-60 as well as C-70 by means of cooperative pi-pi and n-pi interactions. The geometrical (concave-convex) and electronic (donor-acceptor) complementarity accounts on one hand for remarkable binding strengths, with association constants reaching 10(7) M-1 in benzonitrile, and on the other hand for lifetimes of the photogenerated radical ion pair state on the order of 45 ps.

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