Carbon Dioxide Fixation by Binuclear Complexes with Hydrophobic Binding Pockets This work was supported by the Deutsche Forschungsgemeinschaft (Project No. KE 585/3-1). The author thanks Prof. Dr. H. Vahrenkamp for his support of this work.

The unusual reactivity of binuclear complexes of the macrocyclic ligand (LR)2− can be attributed to the hydrophobic microenvironment about the free coordination site. The new compounds can be used for the stabilization of reactive intermediates or for the activation of small molecules such as carbon dioxide (see scheme). Supporting information for this article is available on the WWW under http://www.angewandte.com or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.