Seminar Speakers Photos 2006 - Chemistry Department

Department Seminar Speakers

 

2006

 

  • Dr. Seogjoo Jang (Queens College, CUNY)
  • December 1, 2006
  • Title: "Theories of Energy and Charge Transfer Dynamics in Complex Environments"
  • Abstract: The talk presents new advances in the theories of energy and charge transfer. The Forster theory of energy transfer is generalized for multichromophoric energy donor and acceptor, and then applied to the energy transfer in bacterial light harvesting complex systems. New theories of quantum electron transfer improving Marcus-Jortner theory are presented and applied to biological and conjugated oligomer systems.

  • Dr. Marty Lewinter (Purchase College, SUNY)
  • November 3, 2006
  • Title: "On the Properties of Convex Multilayered Cyclofusene"
  • Abstract: Cyclofusene is a corona-condensed benzenoid whose graph-theoretic representation consists of hexacycles each having exactly two non-adjacent shared edges. Multilayered cyclofusene is a fused hexacylic system which can be partitioned into successive layers of cyclofusene. In such systems, an edge shared by two consecutive hexacycles in the same layer is termed radial. In this lecture, upper bounds for the number of radial -bonds in a convex k-layered cyclofusene will be presented.

   
   


  • Dr. Erich S. Uffelman (Washington and Lee University)
  • October 13, 2006
  • Title: "Science in Art: Technical Examinations of 17th Century Dutch Paintings"
  • Abstract: Chemical and analytical examinations of famous paintings are conducted by museums around the world for purposes of authentication and preservation. Often as a result of such examinations an unknown past is uncovered, revealing a history of modifications throughout the centuries and a new understanding of artistic intent. This lecture will cover the use of such analytical techniques as applied to the examinations of 17th century Dutch paintings.

   


  • Dr. Luis Avila (Columbia University)
  • September 29, 2006
  • Title: "Infrared Spectroscopy"
  • Abstract: Infrared spectroscopy is widely used as a technique for chemical analysis of solids, liquids, and gases. The advantages and limitations of different sampling methods, along with some of the actual instrumental accessories will be presented in this seminar.

  • Dr. David Sarno (QCC, CUNY)
  • April 7, 2006
  • Title: "Morphological Studies of Conducting Polymer Nanomaterials"
  • Abstract: Conducting polymers are a unique class of materials that exhibit the characteristics of metals and conventional plastics. The ability to manipulate their nanoscale structure has revealed new properties and hence new applications for these materials. Following a general introduction to conducting polymers and their preparation as nanomaterials (fibers, tubes, spheres), our studies on polyaniline nanofibers and the factors that influence their morphology will be discussed.

   
   


  • Dr. Ruel Desamero (York College, CUNY)
  • March 17, 2006
  • Title: "Advanced Techniques for Studying Biomolecular Systems"
  • Abstract: Vibrational spectroscopy and T-jump relaxation technique are some of the important tools available for studying protein structure and dynamics. The principles behind their operation will be discussed and examples of their application will be presented. A brief overview will be given on how these techniques will be utilized to elucidate the catalytic mechanism in the enzyme dihydropteridine reductase.

       
       


  • Dr. Yorke E. Rhodes (New York University)
  • February 17, 2006
  • Title: "What’s New in the New Field of Astrochemistry?"
  • Abstract: There are now known some 130+ different molecules off-earth, out of the solar system, Interstellar, Intergalactic! All appear to follow rules of structure and energy content that we know, but many are different and have unusual structures not found in our temperate surroundings. What kinds of molecules exist? How did they form? What mechanisms exist for their formation? Let's see what we can predict.

       
       


  • Dr. Gerard Parkin( Columbia University)
  • February 3, 2006
  • Title: "Kinetic and Equilibrium Isotope Effects Pertaining to the Interaction of C-H and H-H Bonds with Transition Metal Centers. When is a Bond not a Bond?"
  • Abstract: Equilibrium isotope effects pertaining to the interaction of C–H and H–H bonds with a transition metal center exhibit unusual temperature dependencies such that, rather than varying in a simple exponential manner, the equilibrium isotope effects exhibit a transition from an inverse to a normal value. The origin of this effect will be discussed.

   

Cultural Centers

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Kupferberg Holocaust Resource Center and Archives

Using the lessons of the Holocaust to educate current and future generations about the ramifications of unbridled prejudice, racism and stereotyping.

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QPAC: Performing Arts Center

QPAC is an invaluable entertainment company in this region with a growing national reputation. The arts at QPAC continues to play a vital role in transforming lives and building stronger communities.

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QCC Art Gallery

The QCC Art Gallery of the City University of New York is a vital educational and cultural resource for Queensborough Community College, the Borough of Queens and the surrounding communities.