title: Molecular weights of cyclic and hollow clusters measured by DOSY NMR spectroscopy.
abstract: The Stokes-Einstein expression of the diffusion coefficient as a function of the hydrodynamic radius of the diffusing object does not explicitly carry the mass dependency of the object. It is possible to correlate the translational self-diffusion coefficients D with the molecular weight M for an ensemble of cyclic or hollow clusters ranging from about 200 to 30,000 g x mol(-1). From this correlation, the mass of a cluster can be deduced from its diffusion coefficient. Consistency of diffusion as a power law of mass and Stokes-Einstein formulation is completely fulfilled with the selected compounds of this contribution.
authors.affiliation: Institut Lavoisier de Versailles, UMR 8180, University of Versailles Saint-Quention en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles, France. sebastien.floquet@chimie.uvsq.fr
authors.forename: Sébastien
authors.initials: S
authors.lastname: Floquet
authors.forename: Sébastien
authors.initials: S
authors.lastname: Brun
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Lemonnier
authors.forename: Marc
authors.initials: M
authors.lastname: Henry
authors.forename: Marc-André
authors.initials: MA
authors.lastname: Delsuc
authors.forename: Yann
authors.initials: Y
authors.lastname: Prigent
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Cadot
authors.forename: Francis
authors.initials: F
authors.lastname: Taulelle