title: Dendronized organoplatinum(II) metallacyclic polymers constructed by hierarchical coordination-driven self-assembly and hydrogen-bonding interfaces.
abstract: We describe the efficient preparation of rhomboidal metallacycles that self-assemble upon mixing a donor decorated with 2-ureido-4-pyrimidinone (UPy) with acceptors containing pendant [G1]-[G3] dendrons. The formed rhomboids subsequently polymerize into dendronized organoplatinum(II) metallacyclic polymers through H-bonding UPy interfaces, which possess the structural features of conventional dendronized polymers as well as the dynamic reversibility of supramolecular polymers. Preservation of both properties in a single material is achieved by exploiting hierarchical self-assembly, namely the unification of coordination-driven self-assembly with H-bonding, which provides facile routes to dendronized metallacycles and subsequent high ordering. The supramolecular polymerization defined here represents a novel method to deliver architecturally complex and ordered polymeric materials with adaptive properties.
authors.affiliation: State Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University , Hangzhou 310027, P. R. China.
authors.forename: Xuzhou
authors.initials: X
authors.lastname: Yan
authors.forename: Bo
authors.initials: B
authors.lastname: Jiang
authors.forename: Timothy R
authors.initials: TR
authors.lastname: Cook
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jinying
authors.initials: J
authors.lastname: Li
authors.forename: Yihua
authors.initials: Y
authors.lastname: Yu
authors.forename: Feihe
authors.initials: F
authors.lastname: Huang
authors.forename: Hai-Bo
authors.initials: HB
authors.lastname: Yang
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Stang