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Metal-Oxygen Intermediates in Dioxygen Activation Chemistry

Posted: 2017-03-17

Time:10:00 am, March 17th 2017 (Friday)

Location: Conference Room on the First Floor, Basic Energy Building

Prof. Wonwoo Nam, Ewha Womans University

Abstract:

Dioxygen is essential in life processes, and enzymes activate dioxygen to carry out a variety of biological reactions. One primary goal in biomimetic research is to elucidate structures of reactive intermediates and mechanistic details of dioxygen activation and oxygenation reactions occurring at the active sites of enzymes, by utilizing synthetic metal-oxygen complexes. A growing class of metal-oxygen complexes, such as metal–superoxo, –peroxo, –hydroperoxo, and –oxo species, have been isolated, characterized spectroscopically, and investigated in various oxygenation reactions. During the past decade, we have been studying the chemical and physical properties of mononuclear non-heme iron-oxygen intermediates in oxygenation reactions, such as non-heme iron(IV)-oxo, iron(III)-hydroperoxo, and iron(III)-superoxo complexes. In this presentation, I will present our recent results on the synthesis and structural and spectroscopic characterization of mononuclear non-heme metal-oxygen intermediates as well as their reactivities in electrophilic and nucleophilic oxidation reactions.

Introduction:

Prof. Wonwoo Nam

Research Experience and Education

 1985 BSc California State University Los Angeles

 1990 PhD University of California Los Angeles

 1990~1991 Postdoctoral Fellow         UCLA

 1991~1994 Assistant Professor         Hong Ik University

 1994~2000 Associate Professor         Ewha Womans University

 2000~2004 Professor         Ewha Womans University

 2005~ Distinguished Professor Ewha Womans University

Activities as Editor or Editorial Board Member

 Associate Editor of Chemical Science (RSC, the new multidisciplinary flagship journal of the Royal Society of Chemistry), (awarded 2011)

 Editorial Advisory Board of Accounts of Chemical Research (ACS), (awarded 2006)

 Editorial Advisory Board of Chemical Communications (RSC), (awarded 2012)

 Editorial Advisory Board of Inorganic Chemistry Frontiers (RSC), (awarded 2013)

 Editorial Advisory Board of Progress in Inorganic Chemistry (John-Wiley & Sons, Inc.), (awarded 2012)

Contact: DNL1209 Prof. Gao Shuang (9248)