Symposium
- The State of the Art Metal Cluster Chemistry: from Synthetic Methodology to New Functionality
- Toward an Integrated Biometal Chemistry: Emerging Approaches to Rigorous Comprehension of Biological Systems
- New Aspects in Two-dimensional Materials -Focusing on Fusion with Coordination Chemistry-
- On-demand Photofunctions in Coordination Chemistry from Mysterious Luminescence to Solar-energy Conversion
- Capture and Activation of Small Molecules in Coordination Chemistry and Bioinorganic Chemistry
- Coordination chemistry from a view point of solution ~ Essential roles of solution in metal complex solution
On-demand Photofunctions in Coordination Chemistry from Mysterious Luminescence to Solar-energy Conversion
Organizer
Miki Hasegawa, Aoyama Gakuin University
Tomoyoshi Suenobu, Osaka University
Kazuyuki Ishii, The University of Tokyo
Program (S235：Symposium S4)
16:40－16:50
Opening Remark： Miki Hasegawa (Aoyama Gakuin Univ.)
Chair: Miki Hasegawa (Aoyama Gakuin Univ.)
(S4-01) 16:50－17:40
Molecular Turnstiles
(Strasbourg Univ., CNRS) Wais Mir Hosseini
Chair: Ayumi Ishii (Aoyama Gakuin Univ.)
(S4-02) 17:40－18:10
Light-induced water splitting by ruthenium complexes
(Inst. Ind. Sci., Univ. of Tokyo; Dept. Appl. Chem, Tokyo Metropolitan Univ.; Sch. Chem., Monash Univ.; Dept. Chem. Univ. of Adelaide) ○Yan Mulyana・Kazuyuki Ishii・Leone Spiccia・F. Richard Keene
Chair: Kazuyuki Ishii (Univ. of Tokyo)
(S4-03) 18:10－18:40
Tuning Emission Wavelengths of Metal Complexes Operative in Chemical Biology
(Div. Mol. Sci., Gunma Univ,; Dep. Biotech., Akita Pref. Univ.; Gunma Univ.) ○Toshitada Yoshihara・Masahiro Hosaka・Toshiyuki Takeuchi・Seiji Tobita
Chair: Yasuchika Hasegawa (Hokkaido Univ.)
(S4-04) 18:40－19:10
Spontaneous Switching of Circularly Polarized Luminescence of Rare Earth Complexes
(Grad. Sch. Mat. Sci., Nara Inst. Sci. Tech.) Junpei Yuasa
Chair: Tomoyoshi Suenobu (Osaka Univ.)
(S4-05) 19:10－19:50
On-demand Coordination Design and Development of Molecular Labels and Sensors for Bioimaging and Photoredox Catalysis
19:50－20:00 Closing Remarks
Tomoyoshi Suenobu (Osaka Univ.)
Abstract
Photo-responsive physical and chemical properties in coordination chemistry play key roles in the development of molecule-based materials which demands the precise molecular design in response to the expanding varieties of their applications. For instance, the fine tuning of bonding strengths and modes of coordination between organic ligands and metal ions even through supramolecular interactions that are generally expected to be rather weak affords drastic changes of luminescence behaviors via the triplet MLCT transitions of transition metal complexes or the ff and df transitions of lanthanide complexes. Thereby, from the viewpoint of the quantum efficiency, lifetime, spectral band widths, degree of circular polarization, and Stokes shift, the fascinating and occasionally mysterious luminescence properties of metal complexes which completely differ from those of organic molecular systems would be appropriate for specialized applications, e.g., bioimaging, EL, sensors, molecular devices, and so on. Thus, the excited-state behaviors of coordination compounds have attracted considerable attention as a result of their relation to novel photofunctions not only in the luminescence properties but also in the redox photocatalysis. In this session, five topics of the on-demand photofunctions in coordination chemistry are to be prvided; (i) tectonic molecules/aggregation with luminescence (Prof. Hosseini), (ii) molecular shaped-induced circularly polarizing luminescence of f-elements (Dr. Yuasa), (iii) on-demand molecular bio-labeling/sensing as well as photocatalysis (Prof. You), (iv) in-vivo visualization of tumor tissues (Prof. Tobita), and (v) water-to-energy conversion with light (Dr. Mulyana). Speakers and audiences all together will be able to share the time of fruitful discussion and brainstorming on each subject provided by the above prestigious researches, two of whom will be invited from abroad.
