Abstract The state of the art reactive scattering with oriented molecules is presented. alignment and orientation achieved laser methods deflection fields are compared to each other. They can be described very well a short Legendre series. steric phenomena turn out large closely connected configuration transition state. In few cases deconvolution reaction probability function carried out. concept azimuthal dependence introduced.

The adsorption probability for NO/Pt(111) is highest an initial orientation with the N end of molecule towards surface. This steric effect in brings about a large averaged direct scattering, which amplified by fact that very high. In case scattering N-end collision results smaller reflection angle than O-end collision.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotofragment imaging: the 266-nm photolysis of CD3IDavid W. Chandler, Maurice H. M. Janssen, Steven. Stolte, Robin N. Strickland, John Thoman, and David ParkerCite this: J. Phys. Chem. 1990, 94, 12, 4839–4846Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June 1990https://pubs.acs.org/doi/10.1021/j100375a017https://doi.org/10.1021/j100375a017research-articleACS PublicationsRequest reuse...

New measurements of the differential steric effect for NO + Ar inelastic scattering highlight importance quantum interference.

The first measurements of differential inelastic collision cross sections fully state-selected NO (j=12, Omega=12, epsilon= -1) with He are presented. Full state selection is achieved by a 2 m long hexapole, which allows for systematic study the effect parity conservation and breaking on section. collisionally excited molecules detected using resonant (1+1') REMPI ionization scheme in combination velocity-mapped, ion-imaging technique. current experimental configuration minimizes...

ADVERTISEMENT RETURN TO ISSUEPREVArticleRotational excitation of oriented molecules as a probe molecule-surface interactionFrank H. Geuzebroek, Arjan E. Wiskerke, Manfred G. Tenner, Aart W. Kleyn, Steven Stolte, and Akira NamikiCite this: J. Phys. Chem. 1991, 95, 21, 8409–8421Publication Date (Print):October 1, 1991Publication History Published online1 May 2002Published inissue 1 October 1991https://doi.org/10.1021/j100174a067Request reuse permissionsArticle...

The reactions CsF+K→KF+Cs−1.8 kcal mol−1 (I) and RbF+K→KF+Rb+1.5 (II) have been studied by the crossed molecular beam technique over a range of relative translational energy ?tr from 3 to 8 mol−1. Both reactions, (II), are found proceed via formation long-lived MFK complexes (M≡Cs, Rb). However, strongly different reactivity behavior is observed, attributable mainly difference in sign exoergicities reactions. Angular distributions reactive (R) nonreactive (N) scattering show characteristic...

Rotational angular momentum alignment effects in the rotationally inelastic collisions of NO(X) with Ar have been investigated at a collision energy 66 meV by means hexapole electric field initial state selection coupled velocity-map ion imaging final detection. The fully quantum resolved second rank renormalized polarization dependent differential cross sections determined experimentally are reported for spin-orbit conserving and changing transitions first time. results compared findings...

The concept of the steric effect in molecular collisions is central to chemistry. In this Perspective article we review some progress made studying inelastic and reactive involving relatively small isolated atomic species. We overview theoretical framework used quantify effect, outline key experimental approaches that can be employed study dynamics mechanism oriented aligned molecules. illustrate discussion by highlighting a few recent studies scattering. Finally, conclude with reflections...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRotational alignment of the methyl-d3 fragment from 266-nm photodissociation iodideMaurice H. M. Janssen, David Parker, Greg O. Sitz, Steven Stolte, and W. ChandlerCite this: J. Phys. Chem. 1991, 95, 21, 8007–8013Publication Date (Print):October 1, 1991Publication History Published online1 May 2002Published inissue 1 October 1991https://pubs.acs.org/doi/10.1021/j100174a005https://doi.org/10.1021/j100174a005research-articleACS PublicationsRequest...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDynamics of molecular stereochemistry via oriented molecule scatteringDavid H. Parker, Henk. Jalink, and Steven. StolteCite this: J. Phys. Chem. 1987, 91, 21, 5427–5437Publication Date (Print):October 1, 1987Publication History Published online1 May 2002Published inissue 1 October 1987https://pubs.acs.org/doi/10.1021/j100305a010https://doi.org/10.1021/j100305a010research-articleACS PublicationsRequest reuse permissionsArticle...

A pulsed supersonic and cold oriented beam of NO molecules is incident upon the (111) face clean Ag Pt single crystal surfaces. The steric effect in scattered density distributions determined by a quadrupole mass spectrometer. It found that peak distribution direct inelastically depends linearly on reflection angle. In all circumstances O-end collisions lead to scattering angles more inclined towards surface than N-end collisions. For Pt(111) much stronger measured for Ag(111) surface. seems...

Rotationally inelastic scattering of rare gas atoms and oriented NO molecules exhibits a remarkable alternation in the sign steric asymmetry between even odd changes rotational quantum number. This effect has also been found full quantum-mechanical calculations. However, until now no physical picture given for alternation. In this work, newly developed quasi-quantum treatment (QQT) provides first demonstration that interferences different orientations repulsive potential (that are present...

The fully Λ-doublet resolved state-to-state differential cross sections (DCSs) for the collisions of NO(X, (2)Π, v = 0, j 0.5) with Ar have been shown to depend sensitively on conservation total parity NO molecular wavefunction. Parity changing exhibit a single maximum only in DCS, while conserving transitions multiple rainbow peaks. This behaviour is arise directly from constructive or destructive interference impacting two pointed ends and flatter middle molecule. A simple hard shell, four...

Fully Λ-doublet resolved state-to-state differential cross-sections (DCSs) for the collisions of open-shell NO(X, (2)Π(1/2), ν = 0, j 0.5) molecule with Ar at a collision energy 530 cm(-1) are presented. Initial state selection 0.5, f) was performed using hexapole so that (low field seeking) parity ε -1, corresponding to f component Λ-doublet, could be selected uniquely. Although levels lie very close in one another and differ only their relative parities, they exhibit strikingly different...

Hexapole state selection and orientation of parent molecules is combined with two-dimensional ion imaging photofragments to study the direct photolysis deuterated methyl iodide (CD3I) at 266 nm. The combination these two techniques allows us create an essentially single quantum state-selected beam oriented molecules, which are subsequently photodissociated, measure final state-, velocity-, angle-resolved recoil distribution photofragments. Extensive measurements have been done on variation...