From coordination chemistry to crystal engineering: A journey with poly(pyrazolyl)methane ligands

AEI 47

Daniel L. Reger, Reger@psc.sc.edu, Radu F. Semeniuc, semeniuc@mail.chem.sc.edu, and Mark D. Smith, smith.mark@mail.chem.sc.edu. Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208
The C6H6-n[CH2OCH2C(pz)3]n family of multitopic ligands was used to prepare a variety of metal complexes. Their solid state structures show multiple bonding modes for the [C(pz)3] units. Also, the compounds are organized by non-covalent forces such as hydrogen bonding, π–π stacking and C-H•••π interactions into complex, extended structures. The results derived from the systematic analysis of these structures show that the presence of the rigid parts (central arene core and the [C(pz)3] units) is mandatory in order to observe highly organized supramolecular structures. The presence of the flexible ether linkage is also crucial, allowing all non-covalent forces to manifest themselves in a cumulative and complementary manner. The possibility to use the interplay between the different bonding modes of the [C(pz)3] donor set and the sum of the non-covalent forces to establish a non-covalent strategy for the assembly of covalent networks with remarkable topologies will also be presented.
 

Academic Employment Initiative
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Academic Employment Initiative

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006