Events in physical chemistry.

Resolving the Mechanism of H-bond Switching and Ligand Exchange in Aqueous Ionic Solution

Aqueous ionic solutions lubricate the chemical transformations of environmental and biological systems. How water solvates ions dictates ion solubility, mobility, and bioavailability. I will discuss time resolved vibrational spectroscopy studies of ion solvation, emphasizing the dynamics and mechanism of hydrogen bond switching in aqueous NaClO4 solution and ligand exchange in aqueous Mg(NCS)2 solution. The seminar will end with a discussion of recent femtosecond resolution x-ray measurements of photo-induced spin crossover dynamics in iron(II) tris-bipyridine.

Collective Plasmon Modes in Nanoparticle Assemblies

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Collective Plasmon Modes in Nanoparticle Assemblies

 

Department of Chemistry, Department of Electrical and Computer Engineering

Laboratory for Nanophotonics, Rice University, Houston, Texas 77005

 

Coherent and Incoherent Photons from a Single Solid State Emitter

Coherent and Incoherent Photons from a Single Solid State Emitter Ilja Gerhardt, PhD., University of British Columbia, Chemistry Department, Low Temperature Group, 2036 Main Mall, Vancouver, B.C., V6T 1Z1, Canada, ilja@quantumlah.org Spectroscopy on single emitters has become an indispensable tool for biologists and material scientists. Single molecules, nano crystals and also defect centers in diamond can be optically detected and utilized as labels and reporters to their specific nano-environment. The techniques were engineered towards highly efficient detection of small photon

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