title: One-step multicomponent self-assembly of a first-generation Sierpiński triangle: from fractal design to chemical reality.
abstract: A novel terpyridine-based architecture that mimics a first-generation Sierpiński triangle has been synthesized by multicomponent assembly and features tpy-Cd(II)-tpy connectivity (tpy=terpyridine). The key terpyridine ligands were synthesized by the Suzuki cross-coupling reaction. Mixing two different terpyridine-based ligands and Cd(II) in a precise stoichiometric ratio (1:1:3) produced the desired fractal architecture in near-quantitative yield. Characterization was accomplished by NMR spectroscopy, mass spectrometry, and transmission electron microscopy.
authors.affiliation: Departments of Polymer Science and Chemistry, The Maurice Morton Institute for Polymer Science, The University of Akron, 302 Buchtel Common, Akron, OH 44325 (USA) http://www.dendrimers.com.
authors.forename: Rajarshi
authors.initials: R
authors.lastname: Sarkar
authors.forename: Kai
authors.initials: K
authors.lastname: Guo
authors.forename: Charles N
authors.initials: CN
authors.lastname: Moorefield
authors.forename: Mary Jane
authors.initials: MJ
authors.lastname: Saunders
authors.forename: Chrys
authors.initials: C
authors.lastname: Wesdemiotis
authors.forename: George R
authors.initials: GR
authors.lastname: Newkome
mesh_terms: D017709:Fractals; D009682:Magnetic Resonance Spectroscopy; D046529:Microscopy, Electron, Transmission; D021241:Spectrometry, Mass, Electrospray Ionization
keywords: Sierpiński triangles; metal complexes; molecular fractals; self-assembly; terpyridine