title: Stepwise coordination of Pt(II)-180° and Pd(II)-90° metal fragments to the purine nucleobase 9-methylhypoxanthine affords a closed octadecanuclear Pt6Pd12 cluster.
abstract: Crossing the line: A pH-induced "crossover" in 3D shapes of supramolecular constructs derived from trans(NH3)2Pt(II), [Pd(II)(en)], and the purine model nucleobase 9-methylhypoxanthine (see figure) is reported in which [Pd(en)(H2O)](2+) and [Pd(en)(OH)](+) are the decisive players (en = ethylenediamine).
authors.affiliation: Fakultät Chemie, Technische Universität Dortmund, 44221 Dortmund, Germany.
authors.forename: Francisca M
authors.initials: FM
authors.lastname: Albertí
authors.forename: Witold
authors.initials: W
authors.lastname: Zielinski
authors.forename: Marta
authors.initials: M
authors.lastname: Morell Cerdà
authors.forename: Pablo J
authors.initials: PJ
authors.lastname: Sanz Miguel
authors.forename: Oliver
authors.initials: O
authors.lastname: Troeppner
authors.forename: Ivana
authors.initials: I
authors.lastname: Ivanović-Burmazović
authors.forename: Bernhard
authors.initials: B
authors.lastname: Lippert
keywords: anion binding; host-guest systems; metallacycles; nucleobases