title: Size selective self-sorting in coordination-driven self-assembly of finite ensembles.
abstract: Size selective self-sorting in the coordination-driven self-assembly of two-dimensional (2-D) polygons and three-dimensional (3-D) cages is presented. Two types of polygons (rectangular and triangular) of different size are formed spontaneously from within mixtures of a molecular "clip" or a 60 degrees organoplatinum acceptor with dipyridyl linkers of different lengths via self-sorting. Furthermore, two different sized 3-D supramolecular cages are formed upon mixing one ditopic organoplatinum acceptor and two different sized tritopic donors from the self-sorting process. The formation of these polygons and cages is characterized using NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS). In all cases, the self-sorting process is directed by the size of the donor building blocks and a dynamic, thermodynamically driven self-correction process resulting in the formation of discrete products from complex mixtures.
authors.affiliation: Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA.
authors.forename: Yao-Rong
authors.initials: YR
authors.lastname: Zheng
authors.forename: Hai-Bo
authors.initials: HB
authors.lastname: Yang
authors.forename: Brian H
authors.initials: BH
authors.lastname: Northrop
authors.forename: Koushik
authors.initials: K
authors.lastname: Ghosh
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Stang
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D017671:Platinum Compounds / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D017671:Platinum Compounds