报告人: Jonathan L. Sessler, Professor,

Department of Chemistry, The Univ. of Texas, Austin, USA

时间：2018年6月6日（周三） 下午14:00—15:30

地点：伟德国际1946官网化学学院A区717报告厅.

报告摘要：

We are working on new strategies for self-assembly. Systems whose study is relatively advanced are the so-called cyclo[m]pyridine[n]pyrroles. These systems permit self-assembly via anion recognition. They also display substrate-dependent responsive features. This has made them of interest as sensor systems and functional materials whose ground and excited state properties may be “switched” through modulation of solvent, pH, and exposure to ionic and neutral analytes.

Complementing work on charged building blocks is the use of electron rich calix[4]pyrroles. Here, anion binding serves to switch the fundamental conformation of the core receptor so as to control self-assembly. This allows the production of monomers, capsules, and oligomers via the judicious choice of calix[4]pyrrole, anion, cation, solvent, and targeted substrate. It also permits control over charge transfer interactions and permits the construction of multi-state molecular logic devices.

Finally, a set of "Texas-size" box-like receptors has been created. These are permitting the chemistry of self-assembly and information storage to be extended into the realm of soft materials. Applications in the realm of water purification are also being explored.

This work was made possible by the dedicated efforts of many coworkers and collaborators who will be thanked during the presentation. Support from the U.S. National Science Foundation, US National Institutes of Health, the US Department of Energy, and the Robert A. Welch Foundation is acknowledged. Funding has also come from the Shanghai University Center for Supramolecular Chemistry and Catalysis, which is acknowledged with gratitude.

Lead References

[1] Park, J. S.; Karnas, E.; Ohkubo, K.; Chen, P.; Kadish, K. M.; Fukuzumi, S.; Bielawski, C. W.; Hudnall, R. W.; Lynch, V. M.; Sessler, J. L. Science 2010, 329, 1324-1327.

[2] Kim, D. S.; Lynch, V. M.; Park, J. S.; Sessler, J. L. J. Am. Chem. Soc. 2013, 135, 14889–14894.

[3] Zhang, Z.; Kim, D. S.; Lin, C.-Y.; Zhang, H.; Lammer, A. D.; Lynch, V. M.; Popov, I.; Miljanić, O. S.; Anslyn, E. V.; Sessler, J. L. J. Am. Chem. Soc. 2015, 137, 7769-7774 (cover).

[4] Hirao, T.; Kim, D. S.; Chi, X.; Lynch, V. M.; Ohara, K.; Park, J. S.; Yamaguchi, K.; Sessler, J. L. Nature Commun. 2018, 9, 823-831.

[5] Ji, X.; Wu, R. T.; Long, L.; Ke, X.-S.; Guo, C.; Ghang, Y.-J.; Lynch, V. M.; Huang, F.; Sessler, J. L. Advanced Materials, 2018. DOI: org/10.1002/adma.201705480.

[6] Ji, X.; Wu, R.-T.; Long, L.; Guo, C; Khashab, N. M.; Huang, F.; Sessler, J. L. J. Am. Chem. Soc. 2018, 140, 2777–2780.

报告人介绍：

Prof. Jonathan L. Sessler was born in Urbana, Illinois, USA on May 20, 1956. He received a B.S. degree (with Highest Honors) in chemistry in 1977 from the University of California, Berkeley. He obtained a Ph.D. in organic chemistry from Stanford University in 1982 (supervisor: Professor James P. Collman).  He was a NSF-CNRS and NSF-NATO Postdoctoral Fellow with Professor Jean-Marie Lehn at L'Université Louis Pasteur de Strasbourg, France. He was then a JSPS Visiting Scientist in Professor Tabushi's group in Kyoto, Japan. In September, 1984 he accepted a position as Assistant Professor of Chemistry at the University of Texas at Austin, where he is currently the Doherty-Welch Chair. Dr. Sessler has authored or coauthored over 700 research publications, written two books (with Dr. Steven J. Weghorn and Drs. Philip A. Gale and Won-Seob Cho, respectively), edited two others (with Drs. Susan Doctrow, Tom McMurry, and Stephen J. Lippard, Placido Neri and Mei-Xiang Wang), and been an inventor of record on over 75 issued U.S. Patents. To date, Dr. Sessler’s work has been featured on more than 40 journal or book covers. His current H-index is 98.  Dr. Sessler is an Associate Editor for ChemComm. Dr. Sessler is a co-founder (with Dr. Richard A. Miller) of Pharmacyclics, Inc., which was acquired by AbbVie for $21B in 2015. He is currently launching Cible, Inc. with Dr. Jonathan F. Arambula  and Ms. Karen Strnad. Dr. Sessler has served as the co-organizer of several international conferences in porphyrin, supramolecular, and macrocyclic chemistry and numerous ACS symposia. In addition to English, he speaks French, Spanish, German, and Hebrew reasonably well and can get by in Japanese. He struggles with Korean. He does not know any Chinese. Dr. Sessler’s work has been recognized with several awards, including the ACS Cope Scholar Award, the RSC Centenary Prize, the Southwest Regional ACS Award, the Molecular Sensors-Molecular Logic Gates Award, the CASE award, and the Hans Fischer Award. He is a member of the U.S. National Academy of Inventors and was named Inventor of the Year at The Univ. of Texas at Austin in 2016. He was recently named the 2018 Thomas Dougherty awardee in Photodynamic Therapy.