A facile approach toward multicomponent supramolecular structures: selective self-assembly via charge separation.
A novel approach toward the construction of multicomponent two-dimensional (2-D) and three-dimensional (3-D) metallosupramolecules is reported. Simply by mixing carboxylate and pyridyl ligands with cis-Pt(PEt(3))(2)(OTf)(2) in a proper ratio, coordination-driven self-assembly occurs, allowing for the selective generation of discrete multicomponent structures via charge separation on the metal centers. Using this method, a variety of 2-D rectangles and 3-D prisms were prepared under mild conditions. Moreover, multicomponent self-assembly can also be achieved by supramolecule-to-supramolecule transformations. The products were characterized by (31)P and (1)H multinuclear NMR spectroscopy, electrospray ionization mass spectrometry, and pulsed-field-gradient spin echo NMR techniques together with computational simulations.
Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States. zheng@chem.utah.edu
Yao-Rong
YR
Zheng
Zhigang
Z
Zhao
Ming
M
Wang
Koushik
K
Ghosh
J Bryant
JB
Pollock
Timothy R
TR
Cook
Peter J
PJ
Stang
D002264:Carboxylic Acids / Q000737:chemistry; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D009944:Organoplatinum Compounds / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry; D013379:Substrate Specificity
D002264:Carboxylic Acids; D008024:Ligands; D009944:Organoplatinum Compounds; D011725:Pyridines; C023666:pyridine