Topic: Metal-Oxide Clusters: Supramolecular Assembly and Functionalization
Time: 03:00PM, Apr. 17th (Monday)
Location: Conference Room B, BLDG 909-1F
Abstract
Dynamic self-assembly rests on the smart design and synthesis of molecules and/or molecular components, which carry the structural, stimuli-responsive, and functional information into programmed systems. The precise combination by selecting the best fitted molecular subunits, has taken advantage of this dynamic of constitution, going from structural novelty to functional applications such as catalysis, template synthesis, self-replicating systems, logic gates, etc. Polyoxometalates (POMs), as a class of nano-size metal-oxygen clusters with diverse structural and composition architectures, have been used for the self-assembly of soft materials systems under the support of organic partners because of their obvious size uniformity, changeable surface charges, as well as their rich functions. Up to now, the challenges are to build up a rational approach and to organize the hard polyanions into controllable self-assembly systems so that the clusters can be modulated by sensing the environment concomitantly. By combining cationic components through electrostatic interaction with POMs, we develop a series of supramolecular complexes with amphiphilic properties that can be applied for self-assembly at interface, in solutions, and in solid matrixes. This presentation will summarize our recent progress on the topic, including smart assemblies in dynamic structure stimuli-responses, fabrication of surface and bulk composite, and the functional materials in luminescence, liquid crystals, supramolecular gels, bio-imaging, chiral catalysts, photo- and electro-chromisms, as well as precise nano-separations. These results open a new supramolecular route for the POM based functional materials systems.
Biography
Position: Full Professor of Chemistry, Jilin University.
Specialty: Colloid & interface chemistry, polyoxometalate chemistry, supramolecular chemistry.
Education:
Ph.D. 1993, Institute of Theoretical Chemistry, Jilin University, China.
M.Sc. 1989, Institute of Theoretical Chemistry, Jilin University, China.
B. Sc. 1982, Department of Chemistry, Heilongjiang University, China.
Working Experience:
1993-present, Lecturer (1993), Associate Professor (1997), Professor (2000), Jilin University, China 2011, Visiting Professor, Lehigh University, USA.
2002-2003, DFG Visiting Professor, Institute of Physics, University of Muenster, Germany. 1997-1998, Research associate, Department of Chemistry, University of Hong Kong, China. 1996, JSPS postdoctoral fellow, Research Inst. for Elec. Sci., Hokkaido University, Japan. 1995-1997, Postdoctoral fellow, Changchun Institute of Physics, CAS, China.
Awards:
2002, Cross-Century Excellent Talent of The Ministry of Education, China.
2008, The State Council Government Bonus, China.
2013, Changbaishan Professor of Jilin Province, China.
Contact: Prof. Lifeng Chi