Publication

Ultra-sensitive vibrational spectroscopy of protein monolayers with plasmonic nanoantenna arrays

Publications associées (73)

Efficient Stimulated Raman Pumping for Quantum-State Resolved Surface Reactivity Measurements

Thomas Rizzo, Rainer Beck, Plinio Maroni

We describe the use of stimulated Raman pumping in a molecular beam to perform quantum state resolved gas-surface reactivity measurements for molecules prepared in totally symmetric vibrational states. Vibrational states of homonuclear diatomics as well as ...

2006

Vibrational spectra of vitreous germania from first-principles

Alfredo Pasquarello, Luigi Giacomazzi

We report on a first-principles investigation of the structural and vibrational properties of vitreous germania (v-GeO2). Our work focuses on a periodic model structure of 168 atoms, but three smaller models are also studied for comparison. We first carry ...

2006

Fraction of boroxol rings in vitreous boron oxide from a first-principles analysis of Raman and NMR spectra

Alfredo Pasquarello

We determine the fraction f of B atoms belonging to boroxol rings in vitreous boron oxide through a first-principles analysis. After generating a model structure of vitreous B2O3 by first-principles molecular dynamics, we address a large set of properties, ...

2005

Medium-range structural properties of vitreous germania obtained through first-principles analysis of vibrational spectra

Alfredo Pasquarello, Luigi Giacomazzi

We analyze the principal vibrational spectra of vitreous GeO2 and derive therefrom structural properties referring to length scales beyond the basic tetrahedral unit. We generate a model structure that yields a neutron structure factor in accord with exper ...

2005

Structural Trends in Transition Metal Cation-Acetylene Complexes Revealed through the C-H Stretching Fundamentals

Metal cation-acetylene complexes (M = V, Fe, Co, Ni) are produced in mol. beams and studied with IR photodissocn. spectroscopy in the C-H stretching region. Each complex has two vibrational bands corresponding to the sym. and asym. stretches of acetylene t ...

2005

State-resolved gas-surface reactivity of methane in the symmetric C-H stretch vibration on Ni(100)

Thomas Rizzo, Rainer Beck, Plinio Maroni, Marco Sacchi, Thanh Tung Dang

The state-resolved reactivity of CH4 in its totally symmetric C-H stretch vibration (nu(1)) has been measured on a Ni(100) surface. Methane molecules were accelerated to kinetic energies of 49 and 63.5 kJ/mol in a molecular beam and vibrationally excited t ...

2005

Fluorescence detected microwave Stark effect measurements in excited vibrational states of H2CO

Thomas Rizzo, Patrice Theulé

We describe a microwave-optical double resonance experiment designed for Stark effect measurements on molecules in excited vibrational energy levels of ground electronic states. This technique, which employs pulsed laser excitation and laser induced fluore ...

2003

Applications of surface analysis in the environmental sciences: dehalogenation of chloro-carbons with zero-valent iron and iron-containing mineral surfaces

Tamar Kohn

Halogenated organic compounds are common pollutants in groundwater. Consequently, there is widespread interest in understanding the reactions of these compounds in the environment and developing remediation strategies. One area of ongoing research involves ...

Elsevier2003

Superweak complexes of tetrahedral P4 molecules with the silver cation of weakly coordinating anions

The silver aluminates AgAl[OC(CF3)2(R)]4 (R = H, CH3, CF3) react with solns. of white phosphorus P4 to give complexes that bind one or two almost undistorted tetrahedral P4 mols. in an h2 fashion: [Ag(P4)2]+[Al(OC(CF3)3)4]- (1) contg. the 1st homoleptic me ...

2002

Torsion-rotation analysis of OH stretch overtone-torsion combination bands in methanol

Thomas Rizzo

We report rotationally resolved spectra of jet-cooled methanol for the OH stretch overtones, 2v(1) and 3v(1), and for the torsional combinations, 2v(1)+v(12), 2v(1)+2v(12), 3v(1)+v(12), and 3v(1)+2v(12). The spectra are obtained by direct excitation from t ...

2002

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