Student Hosted Colloquium

Thursday, February 14th
Professor Royce Murray
"Analytical Chemistry and Properties of Golden Quantum Dots"


4:15pm - 5:15pm
Braun Auditorium
S.G.Mudd Chemistry Building
Stanford University




This seminar is free and open to the public. All Stanford University Chemistry students are encouraged to attend this special event.

About the Seminar:
This lecture describes contemporary work on the synthesis, analytical characterization, and properties of Au nanoparticles which have 1-3 nm diameters. In this size range, some of the nanoparticle properties vary with size—they are size-quantized. These include HOMO-LUMO energy gaps and quantized double layer charging, as observed optically and by voltammetry of nanoparticle solutions. The nanoparticles are strongly stabilized by organothiolate monolayers. Central in this project are selecting analytical tools (such as mass spectrometry, Raman spectroscopy, NMR, X-Ray diffraction, electronic conductivity) to define nanoparticle composition and properties. Recent work on electron transfer dynamics has uncovered an inner sphere component to the electron transfer energy barrier of a Au25L180/1- couple. This research has been supported by the National Science Foundation and the Office of Naval Research.

About Murray:
Royce W. Murray was educated at Birmingham Southern College (B.S., '57) and Northwestern University (Ph.D., analytical chemistry, '60), joined the University of North Carolina faculty in 1960 and became Kenan Professor of Chemistry in 1980. He was Chemistry Department Chairman 1980-85. Murray has been colleague to nearly 150 graduate and post-graduate students, with whom he has published over 425 papers. Notable awards (of 16) include the Olin Palladium Medal (The Electrochemical Society), the Charles N. Reilley Award (Society for Electroanalytical Chemistry), the Faraday Medal (Royal Society of Chemistry, UK), Breyer Medal (Royal Australian Chemical Institute), American Chemical Society Award in Analytical Chemistry, the North Carolina Award in Science, the Pittsburgh Analytical Chemistry Award, and the Luigi Galvani Medal of the Italian Chemical Society. He is an elected member of the National Academy of Sciences and of the American Academy of Arts and Sciences and is Chair of the NAS Chemistry Section. He has served since 1991 as Editor-in-Chief of the journal Analytical Chemistry. Murray's research interests include electroanalytical methods, the molecular design of electrode surfaces and nanoparticles, electrochemically reactive semi-solid media, mass transport and electron transfer dynamics, electrocatalysis, and voltammetry in extreme media.

Questions
Please contact Patricia Dwyer at 650-723-4770.