April 26, Marina Petrukhina, State University of New York at Albany

in Spring 2013
December 20th, 2012

Petrukhina3:00 PM in Room 205, 8 St. Mary’s Street

Refreshments served at 2:45 PM

Charging Buckybowls with Multiple Electrons:
Self-Assembly and Metal Intercalation Patterns

Abstract: Nonplanar polyaromatic hydrocarbons are unique molecules in which the convex and concave faces exhibit different chemical and physical properties. Those include a novel class of open geodesic polyarenes that map onto the surfaces of fullerenes but lack their full closure, and therefore are often referred to as buckybowls or fullerene fragments. Systematic investigation of their properties and reactivity is a new area of research rapidly growing in the last decade. Curved polyarenes serve as excellent reservoirs for multi-electron uptake. Their controlled reduction followed by the isolation of solid products has been recently accomplished in our group [1-3]. Structural deformations caused by adding multiple electrons to a π-bowl as well as supramolecular aggregation with alkali metal ions have been investigated. The long-standing mystery behind the structure formed by the highly charged corannulene tetraanion has been resolved [1]. Single-crystal X-ray diffraction analysis of its lithium salt confirms the formation of a supramolecular aggregate with a high degree of alkali metal encapsulation. These results establish a new paradigm for lithium intercalation between the curved carbon surfaces of buckybowls and fullerenes.

Biography: Marina A. Petrukhina is a Professor at the Department of Chemistry, University at Albany, State University of New York. She received BS/MS (Chemistry/ Radiochemistry, summa cum laude) and Ph.D. (Inorganic Chemistry) degrees from the Moscow State University named after M. V. Lomonosov in 1985 and 1988, respectively. From 1996 through 2001, she worked in the internationally recognized laboratory of Prof. F. A. Cotton at Texas A&M University, College Station, Texas. Since 2001, she holds a faculty position at the Department of Chemistry, University at Albany, NY. Dr. Petrukhina has published and co-authored more than 145 original articles in refereed scientific journals, including 4 reviews, 2 book chapters, and 5 patents. She delivered over 70 invited lectures at various universities within the US and abroad and contributed numerous presentations at national and international scientific meetings and symposia. Petrukhina’s research interests span the fields of synthetic and structural inorganic, organometallic, nano- and supramolecular chemistry. She received the National Science Foundation CAREER Award for 2006-2011 and served as an Editor for the book entitled “Fragments of Fullerenes and Carbon Nanotubes:  Designed Synthesis, Unusual Reactions, and Coordination Chemistry”, John Wiley & Sons, 2012 (Editors: M. A. Petrukhina and L. T. Scott).

 

Faculty Host: Linda Doerrer

Student Host: Anny Hierro