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IMRE seminar on "Energy level alignment at organic/inorganic and organic/organic interfaces: The role of structural defects"
25 May 15 (Mon) - 11.00am - 12.00pm
The energy level alignment (ELA) at organic/metal and organic/organic interfaces largely affects the performance of organic based devices. Despite the relevance of the topic, the origin of the ELA mechanism remains still controversial. In this talk, I will present experimental evidences of the major role played by structural related density of gap states in determining the ELA in organic thin films, as investigated by high sensitivity ultraviolet photoemission spectroscopy (UPS).

IMRE seminar on "Cutting Edge Strategies in Fluorescent Imaging Toward Future Biomedical Applications"
27 May 15 (Wed) - 02.30pm - 03.30pm
The systematic studies of chemical reactions of enzyme or proteins with the fluorescence conjugated substrates in a complicated environment will offer the great possibility for the in-depth understanding of the biological basis conferring diseases status, and importantly, for the facilitating of new discovery and development of effective therapeutic and diagnostic approaches in vitro and in vivo. A series of simple and specific fluorescent/bioluminescent probes have been developed to real-time visualize bacterial or tumor cell functions, importantly, the intrinsic mechanisms to involve in potent drug activities and relevant pathways to potentially initiate drug resistance have been extensively investigated in vitro and in vivo. The results will be presented in this seminar.

IMRE seminar on "Correlation between Structures and Chiralities in Coordination Chemistry"
26 Jun 15 (Fri) - 10.00am - 11.00am
In recent years, chiral coordination compounds have received increased attention because of their potential applications in asymmetric catalysis, non-linear optics, sensors, and multifunctional materials, as well as because of their fundamental significance in modern stereochemistry. We have been interested in the rational creation of chiral polynuclear and supramolecular coordination compounds composed of metal octahedrons with chelating thiolate ligands, such as 2-aminoethanethiolate, cysteinate, and penicillaminate. In this seminar, I will present our development on this subject, focused on the correlation between polynuclear structures and molecular chiralities.

IMRE seminar on "Nanoporosity and the Welcome Guest: Developing Metal-Organic Frameworks for Hydrogen Storage, Catalysis and Sensing"
2 Jul 15 (Thu) - 11.00am - 12.00pm
Metal-Organic Frameworks (MOF)s are crystalline materials in which metal ions or metal-ion clusters are linked by rigid organic molecules, creating a supramolecular network that has permanent nanoporosity. Unwanted “guest” species, which can be solvent molecules or residual reactant, can be removed without pore collapse. Once a MOF is activated, it provides a highly ordered, chemically tailorable structure that can be used to store gases such as hydrogen, perform as nanoreactors for catalysis, and serve as an active component of electronic devices such as sensors, light-emitting diodes, and energy-harvesting or storage systems.

IMRE seminar on "Parent Amido and Imido Complexes: From Ammonia Activation to Cluster Chemistry"
11 Aug 15 (Tue) - 02.30pm - 03.30pm
Parent amido-bridged complexes tetrafluorobenzo-barrelene or cyclooctadiene can be prepared by treatment of the methoxo-bridged compounds with gaseous ammonia.These compounds are interesting platforms of unusual low-valent metal amido complexes to explore their reactivity.

IMRE seminar on "Auro, Argento and Mercurophilic Interactions in Molecules and Crystals"
13 Aug 15 (Thu) - 02.30pm - 03.30pm
A quarter of a century of research has demonstrated that metallophilic interactions between the seemingly closed-shell gold(I), silver(I) and mercury(II) centers are ubiquitous in molecules and materials and have a marked influence on the structure and properties of the systems. And yet, the impact of the effect varies very strongly with the nature of the metal center and of its ligands. Interaction energies may reach values near or beyond that of hydrogen bonds, or are so weak that they can hardly be distinguished from those associated with standard dispersion forces. Recent results will be presented to illustrate the scope of the interactions.

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