title: Hydrogen-bond mediation of supramolecular aggregation in neutral bis-(C6F5)Pt complexes with aromatic H-bond donating ligands. A synthetic and structural study.
abstract: Six pentafluorophenylplatinum(II) complexes containing proton acceptor atoms (F) and pyridine-like aromatic ligands able to act as proton donors have been synthesized and characterized, with emphasis on the factors that mediate their supramolecular aggregation in the solid state--hydrogen bonds and pi-pi interactions. The crystal structure analyses of the mononuclear complexes cis-[Pt(C6F5)2(napy)](1), cis-[Pt(C6F5)2(CH2napy)](3), cis-[Pt(C6F5)2(2-ammpy)](5), and cis-[Pt(C6F5)2(2-bipym)](6) reveal the influence of D-HPt and D-HF (D=C, N) hydrogen bonding on the organization of molecules into stacks, which can be further interconnected to generate channels. The prevalence of hydrogen bonding over pi-pi interactions between aromatic rings in establishing the nature of the observed supramolecular aggregation is demonstrated.
authors.affiliation: Departmento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., Spain.
authors.forename: José M
authors.initials: JM
authors.lastname: Casas
authors.forename: Beatriz E
authors.initials: BE
authors.lastname: Diosdado
authors.forename: Larry R
authors.initials: LR
authors.lastname: Falvello
authors.forename: Juan
authors.initials: J
authors.lastname: Forniés
authors.forename: Antonio
authors.initials: A
authors.lastname: Martin
authors.forename: Angel J
authors.initials: AJ
authors.lastname: Rueda