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MSC Colloquium John J. Boland


04 May 2006 FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen
Speaker: John J. Boland 
Affiliation: School of Chemistry and Director of the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin , Ireland
Title: Mapping chemical bond formation between a metallic probe and a single molecule
Date: Thu May 4, 2006
Start: 16.00 (Doors open and coffee available at 15.30)
Location: FWN-Building 5111.0080
There is enormous interest in contact formation at the nanoscale.  In this talk I present a study that maps out chemical bond formation between a Pt-inked probe and a single 1,3-cyclohexadiene (1,3-CHD) molecule on Si(100).  By defining an appropriate tunneling energy window we separate the mechanical and electronic contributions to the current during the approach to contact and bond formation.  I show that there are significant forces  between the probe and the C=C of the molecule and we track the relaxation of the molecule, the emergence of a chemical bond feature in the LDOS and the quenching of specific molecular vibrations during bond formation.  Finally, I will discuss the application of this method to surface reaction dynamics.
Last modified:22 October 2012 2.30 p.m.