April 1, 2019 at 10:00 pm

Roenigk Lecture Series | Molecular Tectonics & Molecular Turnstiles, April 9, 10

Mir Wais Hosseini, portrait in office

Dr. Mir Wais Hosseini

Ohio University’s Chemistry and Biochemistry Department introduces the 2018-19 Roenigk Lecturer, Professor Mir Wais Hosseini, from the University of Strasbourg, France.

Hosseini will give two lectures in the Clippinger auditorium:

  • Tuesday, April 9, 4:10 – 5 p.m., “Molecular tectonics: from networks of molecules to networks of crystals”
  • Wednesday, April 10, 4:10 – 5 p.m., “Molecular Turnstiles”

In his first lecture, Hosseini will introduce the audience to “molecular tectonics,” a construction strategy that bridges the gap between microscopic (atoms and molecules) and macroscopic (materials) worlds. This approach is based on supramolecular synthesis of crystalline materials seen as extended periodic molecular networks. Their construction by self-assembly processes results from repetitive molecular recognition events between programmed tectons or building blocks. The approach is operational and versatile and allows, not only the design and construction of a variety of organic or hybrid complex architectures and core-shell crystals, but also the welding, under mild condition, of crystals into networks of crystals.

Graphic illustrating welded crystals, corr-shell crystals, and more.

In his second lecture, Hosseini will present his work on molecular motors. Molecular translational or rotational motors are architecture for which movements between a fixed and a mobile portion may be induced by external stimuli. As a first step toward molecular motors, a series of molecular turnstiles have been designed and synthesized. The first category is based on Sn(IV) porphyrins as stators bearing at the meso positions interactions sites and equipped with different handles as rotors. The connection between stators and rotors is achieved through Sn-O (Fig. 1 below). The second design principle is based on the covalent attachment of the rotor to the stator using two opposite meso positions on the porphyrin backbone (strapped porphyrins) (Fig. 2). Finally, the tired approach is based on organometallic Pt complexes as rotors and coordinating handles as stators (Fig. 3). The design, synthesis and structural characterizations, both in solution by multidimensional 1H-NMR techniques and in the solid state by X-ray diffraction on single crystals, of a series of molecular gates and turnstiles will be presented and discussed.

Schematic representations of molecular motors

About Professor Mir Wais Hosseini

Hosseini was born in Kabul, Afghanistan. He was educated mainly in Strasbourg, France, where he earned a Ph.D. under the supervision of Professor Jean-Marie Lehn in December 1983. After research and visiting positions at the University of Strasbourg (with Lehn), Kansas University (with Dr. M. P. Mertes), the University of California at Berkeley (Dr. K. N. Raymond), and at the University of Western Australia, Perth, he was appointed Professor of chemistry and director of the Organic Coordination Chemistry Laboratory at the University of Strasbourg in 1992. In 1997, he became a member of the Institut Universitaire de France (IUF). Hosseini is now Exceptional Class Professor of chemistry at the University of Strasbourg, a senior member of the Institut Universitaire de France, chair of Molecular Tectonics, and the director of the Molecular Tectonics Laboratory.

Since the early ’90s, he has held multiple invited professorships across the globe (1992: University of Geneva, Switzerland; 1995: Institute of Materials and Chemical Research, Tsukuba, Japan; 1996: University of Tokyo, Japan; 2001: Academia Sinica, Taipei, Taiwan; 2004: Institut Universitaire de France; 2007: University of Kyoto, Japan; 2009: Institut Universitaire de France; 2011: University Hokkaido, Sapporo, Japan; 2015: Politecnico di Milano, Italy; 2015: Aoyama Gakuin University, Kanagawa, Japan; 2015: Stellenbosch University, South Africa; 2016-2019: University of Namur, Belgium; 2017: New York University, USA; 2018: Hokkaido University, Japan).

Hosseini has received a large number of prominent awards, such as the title of Chevalier de la Légion d’Honneur (National Order of the Legion of Honour; the highest French order of merit for military and civil merits), the title of Chevalier de l’Ordre des Palmes Académiques, and the Silver Medal of the French National Research Center (CNRS). He is also member of Academia Europaea, the European Academy of Sciences, Arts and Humanities, the European Academy of Sciences, the Academy of Sciences, Letters and Arts of Alsace. He is also a fellow of the Royal Society of Chemistry, and a honorary member of Romanian Chemical Society.

Among other prizes, he was awarded the Prize of the Coordination Chemistry Division of the French Chemical Society, the Prize of the Organic Chemistry Division of the French Chemical Society, the Prize of “Académie Rhénane,” Strasbourg, France, the Gheorghe Spacu Medal of the Romanian Chemical Society, the French-Italian binational Prize, the German-French binational Grignard-Wittig Prize, the Alexander von Humboldt Research Award, the Izatt Christensen Award in Supramolecular and Macrocyclic Chemistry, and the Grand Prix Achille Le Bal of the French Chemical society.

Since 2010, Hosseini is also the Editor in Chief of the New Journal of Chemistry (RSC). He has sat on multiple editorial boards of scientific journals, such as Chemical Communications (RSC), Crystal Growth and Design (ACS), CrystEngComm (RSC) and Supramolecular Chemistry.

Hosseini has supervised five habilitations, 52 Ph.D theses and over 100 M.S. theses, as well as many undergraduate and post-doctoral scholars. He is the author of 345 publications and one book, (“Molecular Networks”, Structure & Bonding, Springer, 132, 2009). He has given close to 500 lectures around the world.

About the Roenigk Lecture

The Roenigk Lecture is named for Dr. Henry H. Roenigk Jr., MD, FACP, and is a joint initiative of the OHIO Chemistry & Biochemistry Department and its first Roenigk Chair, Dr. Eric Masson. Roenigk earned his bachelor of arts degree from Ohio University College of Arts & Sciences and his medical degree from Northwestern University Medical School.

Roenigk is a nationally recognized dermatologist. He attended Northwestern University Medical School, completed his internship at Tripler Army Hospital, Fellowship in Dermatology at Cleveland Clinic. He was the Chairman of Dermatology at both Northwestern University, as well as Cleveland Clinic for 25 years. He is Board Certified with the American Board of Dermatology.

Roenigk is Professor Emeritus of Dermatology at Northwestern University Medical School. He has edited multiple medical textbooks including Roenigk’s Dermatologic Surgery: Current Techniques in Procedural Dermatology and Psoriasis. He has served on the boards of many professional associations, including serving as president for both the American and the International Societies for Dermatologic Surgery. He was also the Chairman of Dermatology at Northwestern University for 16 years and at the Cleveland Clinic for nine years. He is a member of the editorial board for Cutis and has authored more than 300 journal articles, 11 books, and numerous book chapters on psoriasis and dermatology.

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