SUPRAMACROMOLECULAR SELF-ASSEMBLY
VIA METAL COORDINATION
George R. Newkome
Departments of Polymer Sciences and Chemistry
The University of Akron
Akron, OH 44325-4717 newkome@uakron.edu
The formation of bis -terpyridine monomers has facilitated the generation of predictable supramacromolecular oligomers and the related self-assembled hexameric metallocycles, which have been shown to be capable of forming specific higher order architectures. Standard chemical transformations are described that lead to the synthesis of the requisite monomers for the incorporation of desired bond angle necessary to generate diverse polygons. Although over 20 metals have been incorporated into the <tpy-metal-tpy> type of complexes, traditionally it has been the Ru, Os, and/or Fe connectivity that has been the preferred mode of supramolecular coordination however the introduction of the novel properties associated with weaker coordination needs to be considered and capitalized on.
1
The corresponding specifically ordered mixed metal constructs will be considered.
2
Avenues leading to higher ordered fractal motifs will be demonstrated along with their potential to self-assemble to larger macromolecular constructs and assemblies. The utilization of functionalized copper complexes has also been shown to afford novel higher order fractal arrays
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and convenient routes to new polymeric systems as well as polyfunctional composites.
4-7 The synthetic aspects, structural characterization at the bulk and molecular level, and photophysical properties will be presented.
References

(1) Schubert, U. S.; Hofmeier, H.; Newkome, G. R. Modern Terpyridine Chemistry ;
Wiley-VCH: Weinheim, 2006.
(2) Newkome, G. R.; Cho, T. J.; Moorefield, C. N.; Cush, R.; Russo, P. S.; Godínez, L. A.;
Saunders, M. J.; Mohapatra, P. Chem. Eur. J.
2002 , 8 , 2946.
(3) Newkome, G. R.; Wang, P.; Moorefield, C. N.; Cho, T. J.; Mohapatra, P.; Li, S.; Hwang,
S.-H.; Lukoyanova, O.; Echegoyen, L.; Palagallo, J. A.; Iancu, V.; Hla, S.-W. Science 2006 , 312 ,
1782.
(4) Chan, Y.-T.; Li, X.; Soler, M.; Wang, J.-L.; Wesdemiotis, C.; Newkome, G. R. J. Am.
Chem. Soc.
2009 , 131 , 16395.
(5) Chan, Y.-T.; Moorefield, C. N.; Soler, M.; Newkome, G. R. Chem. Eur. J.
2009 , 16 , 1768.
(6) Chan, Y.-T.; Moorefield, C. N.; Newkome, G. R. Chem. Commun.
2009 , 6928.
(7) Chan, Y.-T.; Li, S.; Moorefield, C. N.; Wang, P.; Shreiner, C. D.; Newkome, G. R. Chem.
Eur. J.
2010 , 16 , 4164.