title: Intra- and inter-molecular C-H...F-C and N-H...F-C hydrogen bonding in secondary amine adducts of B(C6F5)3: relevance to key interactions in alkene polymerisation catalysis.
abstract: The reactions between the cyclic sec. amines pyrrolidine and piperidine with B(C6F5)3 yield Lewis acid-base adducts with both intra- and inter-molecular hydrogen bonding interactions between C-H and N-H groups and aryl-fluorines in the solid state.