Fluorous interactions in complexes of lead(II) hexafluoroacetylacetonate

Structure determinations for 2,2'-bipyridine and 1,10-phenanthroline adducts of lead(II) hexafluoroacetylacetonate, [Pb(biPY)(2)(hfacaC)(2)- (1), [Pb(bipy)(hfacac)(2)] (2), and [Pb(phen)(hfacac)(2)] (3), show that the balance of intermolecular forces within the lattices is seemingly sensitive to the adduct stoichiometry but not to the nature of the heteroaromatic base. In 3, a structure, in which there is an apparent preference for CF/aromatic interactions over separate CF/CF and aromatic/aromatic interactions, is essentially identical at both 120 and 293 K. (c) 2005 Elsevier B.V. All rights reserved.