Randomness and order in the exact sciences

Self- and co-assembling soft matter

Tuesday 3 September 2013
House of the Estates
Säätytalo, Helsinki, Finland
      


Kari Rissanen
Department of Chemistry, Nanoscience Center, University of Jyväskylä
Academy Professor, on leave from the professorship of Organic Chemistry.
The research of the Rissanen group focuses on the design, synthesis and structures of supramolecular and nano-sized assemblies and the weak intermolecular interactions they manifest. One major area is the synthesis of receptors for cations, anions and ion-pairs and their recognition properties. A growing topic is the design and synthesis of ligands for self-assembled multinuclear coordination compounds e.g. molecular spheres, helicates, cubes, triangles and cages, also MOFs are of interest. The above is based on relatively simple ligands, transition metal ion coordination supplemented with sub-component self-assembly.

Title: Molecular Self-Assembly of Nano-sized Supramolecules
 
Abstract: An exciting research challenge in supramolecular chemistry is to design, synthesize, and characterize nano-sized architectures with applications in biology, chemistry, and materials science [1]. Predicting and designing non-covalently bound supramolecular complexes and assemblies is difficult because of the weakness of the interactions involved, thus the resulting superstructure is often a compromise between the geometrical constraints of the building blocks and the competing weak intermolecular interactions [2].

Our research interest has been focused on studies of molecular self-assembly based on weak non-covalent intermolecular, viz. supramolecular, interactions as the driving force in the self-assembly and molecular recognition, especially in the solid state by single crystal X-ray diffraction. The lecture will highlight some of our recent studies on hydrogen [3] and halogen [4] bonded systems, pi-pi [5], CH...anion [6], and anion...pi [7] interactions and metal ion coordination [8] in molecular self-assembly and molecular recognition in various systems such a resorcinarenes, ditopic receptors, rotaxanes, M4L6 tetrahedra, M8L6 cube, spheres, knots, etc...
 
 

 

References

[1] F. Hof, L.S. Craig, C. Nuckolls, J. Rebek Jr, Angew. Chem. Int. Ed. 2002, 1488.

[2] a) G.R. Desiraju Nature, 2001, 397-399. b) T. Steiner, Angew. Chem. Int. Ed. 2002, 41.

[3] N. Kodiah Beyeh, M. Cetina, K. Rissanen, Cryst. Growth Des. 2012, 4919.

[4] a) K. Raatikainen, K. Rissanen, Chem. Sci. 2012, 1235. b) K. Raatikainen, K. Rissanen, CrystEngComm 2011, 6972. c) P. Metrangolo, Y. Carcenac, M. Lahtinen , T. Pilati, K. Rissanen, A. Vij, G. Resnati, Science 2009, 1461.

[5] a) H. Mansikkamäki, M. Nissinen, K. Rissanen, Angew. Chem. 2004, 1263. b) H. Mansikkamäki, S. Busi, M. Nissinen, A. hman, K. Rissanen, Chem. Eur. J. 2006, 4289.

[6] S.S. Zhu, H. Staats, K. Brandhorst, J. Grunenberg, F. Gruppi, E. Dalcanale, A. Lützen, K. Rissanen, C.A. Schalley, Angew. Chem. Int Ed. 2008, 788.

[7] a) M. Giese, M. Albrecht, T. Krappitz, M. Peters, V. Gossen, G. Raabe, A. Valkonen, K. Rissanen, Chem. Comm. 2012, 9983. b) M. Albrecht, C. Wessel, M. de Groot, K. Rissanen, A. Lüchow A, J. Am. Chem. Soc. 2008, 4600.

[8] J. Bunzen, J. Iwasa, P. Bonakdarzadeh, E. Numase, K. Rissanen, S. Sato, M. Fujita, Angew. Chem. 2012, 3161. b) J.-F. Ayme, J. E. Beves, D. A. Leigh, R. T. McBurney, K. Rissanen, D. Schultz, Nat. Chem. 2012, 15. c) W. Meng, B. Breiner, K. Rissanen, J. D. Thoburn, J. K. Clegg, J. R. Nitschke, Angew. Chem. 2011, 3479. d) P. Mal, B. Breiner, K. Rissanen, J. R. Nitschke, Science 2009, 1697.
 
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