TY - JOUR AU - Gautier, Cyrille AU - Bürgi, Thomas TI - Chiral Gold Nanoparticles PY - 2009 JF - ChemPhysChem JA - ChemPhysChem SN - 1439-4235 VL - 10 IS - 3 SP - 483 EP - 492 L1 - http://onlinelibrary.wiley.com/doi/10.1002/cphc.200800709/pdf L2 - http://onlinelibrary.wiley.com/doi/10.1002/cphc.200800709/full L3 - http://onlinelibrary.wiley.com/doi/10.1002/cphc.200800709/abstract M3 - 10.1002/cphc.200800709 UR - http://dx.doi.org/10.1002/cphc.200800709 KW - chirality KW - circular dichroism KW - gold KW - nanostructures KW - organic KW - inorganic hybrid composites N2 - Nanoparticle chirality has attracted much attention recently, and the application of chiral nanoparticles to chiral technologies (see figure) is also of interest. This Minireview deals with advances in the preparation and characterization of chiral gold nanoparticles. Origins of the chiroptical properties and potential applications are discussed. Monolayer-protected gold nanoparticles have many appealing physical and chemical properties such as quantum size effects, surface plasmon resonance, and catalytic activity. These hybrid organic–inorganic nanomaterials have promising potential applications as building blocks for nanotechnology, as catalysts, and as sensors. Recently, the chirality of these materials has attracted attention, and application to chiral technologies is an interesting perspective. This minireview deals with the preparation of chiral gold nanoparticles and their chiroptical properties. On the basis of the latter, together with predictions from quantum chemical calculations, we discuss different models that were put forward in the past to rationalize the observed optical activity in metal-based electronic transitions. We furthermore critically discuss these models in view of recent results on the structure determination of some gold clusters as well as ligand-exchange experiments examined by circular dichroism spectroscopy. It is also demonstrated that vibrational circular dichroism can be used to determine the structure of a chiral adsorbate and the way it interacts with the metal. Finally, possible applications of these new chiral materials are discussed. ID - 1066 ER -