Chemistry 3 3 175

Daesung Chong

Assistant Professor

|
CP 409S  Phone: 765-285-8614  

Department of Chemistry
Ball State University
Cooper Physical Science Building, room 305
Muncie, IN 47306

Dow Corning Corporation, Siloxane site (2010)
Post Doctoral Associate, University of Vermont (2008)
Texas A&M Univ. (2003)
Sogang University Ph.D. (2001)
Sogang University M.S. (1998)
Kyonggi University B.S. (1996)

Research Interests

Analytical Chemistry-Inorganic and Organic Electrochemistry

Research in our group focuses on the development of new electrochemical analysis, synthesis, catalysis, and nano-material technologies. The overarching objective of our research is to develop organic and inorganic synthetic & deposition methods under mild conditions with an electron that facilitate the efficient preparation of homogeneous and heterogeneous coupling products from trivial and unactivated starting materials. Ultimately, we will apply our methods to the electrochemical synthesis of practical polymer products and energy storage materials.

Nowadays there is growing awareness of the efficacy of electron-transfer (ET) processes in Chemistry. Modern electrochemistry is at the interface of analytical and other areas such as synthetic, catalytic, bio/medical, material, and environmental chemistry. Electrochemical oxidation or reduction provides putative radical cationic or anionic species, respectively, through electron transfer reactions. As the simplest chemical reagent, an electron (e-) is going to be primary reagent for various reactions with water soluble and water insoluble organic and inorganic substances. Via electrode materials (glassy carbon, Pt, Au, Pd, Ni, and so on), our research focuses on the electron-transfer reactions by addition or removal of electrons of organic and organometallic compounds. The primary goal of this research is to understand how the electrochemically generated radical anion or cation plays some roles of ET catalysis and can affect certain desired reaction. By conducting these researches through voltammetric experiments (CV, LSV, DPV, SWV, CC, CA, digital simulation, potentiostatic electrolysis and so on), we may discover new reaction mechanisms and design/modify new and some known systems. In order to support initial voltammetic assignments, spectroscopic data analyses of the magnetic & electron spin resonance spectroscopies, optical spectroscopy (including the near-IR region), infrared spectroscopy, gas & liquid chromatography-mass spectroscopy, X-ray crystallography, surface characterization methods are required to identify electron-transfer reaction products.

Many academically and industrially important atom-atom coupling or cleavage reaction can be not only initiated electrochemically, but also modified by anodic/cathodic reaction processes. Electrochemical approach in many aspects potentially will provide the new opening door prospect through unprecedented and inaccessible phase transferring reaction systems such as liquid to solid and/or solid to liquid.

                                                                     

         

Proceedings:

Chong, D. Electrochemical Redox Properties of Fe(l) and Re(l) Carbonyls with Unactivated Olefins: A Practical Tool for Analysis and Synthesis, Pittcon Conferences & Expo 2013, Philadelphia, PA, March 17-21, 2013

Chong, D. Redox Reaction Initiated Alkene and Alkyne Couplings: Electrochemical Analysis, Synthesis and Catalysis, Analytica Acta-2011, 2nd World Congress on Analytical and Bioanalytical Techniques, San Francisco, CA, December 16-17, 2011 (invited talk)

Selected Publications:

Chong, D.; Tye, J. W. U.S. Published Patent Application No. 2013/0264216 A1, ELECTROCATALYTIC ALKENES AND ALKYNES DIMERIZATIONS AND TRIMERIZATIONS, Oct. 2013. Provisional Patent Application No. 61/621,672, filed Apr. 9, 2012. 

One-Electron Oxidation of ReCp(CO)2L (L = PPh3, 2-butene, diphenylacetylene): Electrochemical, Spectroscopic and Calculational Studies of the Electronic Properties and Dimerization Tendencies of [ReCp(CO)2L]+, in prep, 2013.

Electron-transfer Catalyzed Cycloaddition Reactions of Unactivated Olefins in Tetrakis(perfluoroaryl)borate Electrolytes, submitted, 2013.

Dick, J.E.; Chong, D. Indispensable Applications of Electrochemical Techniques to Organic Synthetic Reactions: Enhancing Versatility and Sustainability, Editorial, Org. Chem: Curr. Res. 2012, 1:3, 1-5

Chong, D.; Dick, J. E. Shin, W. C-C and C-O Coupling Reactions of Terminal Alkynes by a Water Soluble Organoiridium Electron-transfer Mediator in Thin Layer of Water on Gold Electrode, Org. Chem: Curr. Res. 2012, S1, 1-5.

Ohrenberg, N. C.; Paradee, L. M.; DeWitte, R. J. III, Chong, D.; Geiger, W. E. Spectra and Synthetic-Time-Scale Substitution Reactions of Electrochemically Produced [Cr(CO)36-arene)]+ Complexes, Organometallics 2010, 29, 3179–3186.

Chong, D.; Stewart, M. P.; Geiger, W. E. Cycloaddition Reactions of Unactivated Olefins Catalyzed by an Organorhenium Electron-transfer Mediator, J. Am. Chem. Soc. 2009, 131, 7968-7969.

Chong, D.; Slote, J.; Geiger, W. E. The Role of Solvent in the Stepwise Electrochemical Oxidation of Nickelocene to the Nickelocene Dication, J. Electroanal. Chem. 2009, 630, 28-34.

Chong, D.; Laws, R. D.; Nafady, N.; Costa, P. J.; Rheingold, A. L.; Calhorda, M. J.; Geiger, W. E. The  [Re(η5-C5H5)(CO)3]+  Family of 17-Electron Compounds: Monomer/Dimer Equilibria and Other Reactions, J. Am. Chem. Soc. 2008, 130, 2692-2703.

Laws, R. D.; Chong, D.; Nash, K.; Rheingold, A. L.; Geiger, W. E. The Cymantrene Radical Cation Family: Spectral and Structural Characterization of the Half-Sandwich Analogues of Ferrocenium Ion, J. Am. Chem. Soc. 2008, 130, 9859-9870.

Chong, D.; Geiger, W. E.; Davis, N. A.; Weisbrich, A.; Shi, Y.; Arif, A. M.; Ernst, R. D. Synthetic, Structural, and Electrochemical Studies of Edge-Bridged Open Ferrocenes, Organometallics 2008, 27, 430-436.

Nafady, N.; Butterick, R. III.; Calhorda, M. J.; Carroll, P. J.; Costa, P. J.; Chong, D.; Geiger, W. E.; Ramachandran, B. M.; Sneddon, L. R. Redox-Induced Structural Changes in the Manganese Tricarbonyl Complex of a Non-Innocent Tricarbaboranyl Ligand, Organometallics 2007, 26, 4471-4482.

Chong, D.; Nafady, N.; Costa, P. J.; Calhorda, M. J.; Geiger, W. E. Anodic Preparation of [Re2Cp2(CO)6]2+: A Dimeric Dication that Provides the Powerful One-Electron Oxidant [ReCp(CO)3]+, J. Am. Chem. Soc. 2005, 127, 15676-15677.

Awards

2010 Dow Corning Technical Achievement Award.

2011 Cardinals fellow and ENHANCE Awards, BSU.

EDITORS & EDITORIAL BOARD:  Organic Chemistry: Current Research (invited), Open access journal

Course Schedule