129Xe-NMR of physisorbed xenon used as a probe for the study of microporous solids

Abstract

129Xe-NMR of adsorbed xenon is of increasing interest for studying the physical properties of solids: cavity or channel dimensions; short-range crystallinity; nature of structural defects, polymer heterogeneity, etc. This review, which does not claim to be exhaustive, gives a critical account of the vafious ways of using this technique for studying the porosity of solids.

Nucleation and growth of zeolites and inorganic mesoporous solids: Molecular insights from magnetic resonance spectroscopy

“…Diverse and complementary multinuclear applications of solution-and solid-state NMR methods and EPR techniques have elucidated a variety of profound insights on zeolite chemistry, structure, and properties, for which a rich literature exists. We refer the reader with specific interests in these areas to other reviews that discuss NMR measurements of zeolite structures [11], heterogeneous catalyst properties [11][12][13][14][15], the structure of Brønsted acid sites [11,16,17], pore size distributions [18], and guest-host interactions [19], which are beyond the scope of the present compilation. Here, we review recent literature with respect to new molecular-level insights provided by NMR and EPR spectroscopies on the nucleation and growth of crystalline zeolites, focusing principally on work that has appeared since a thorough review by Bell [20] in 1999.…”

Structure and Dynamics of Drawn Gel‐Spun Ultrahigh‐Molecular‐Weight Polyethylene Fibers by 1H, 13C and 129Xe NMR

“…Fraissard and coworkers have proposed that the observed chemical shift (d) caused by various interactions is given by [29,39] …”

Diastereoselective Intramolecular Allyl Transfer from Allyl Carbamate Accompanied by 5‐endo‐trig Ring Closure

“…Fraissard and coworkers have proposed that the observed chemical shift ( δ ) caused by various interactions is given by29, 39 where δ 0 is the chemical shift of the gaseous xenon and δ s is the shift caused by the surface of the pores, both at zero pressure. The chemical shift induced by the xenon‐xenon atoms interactions is ${\delta} _{{\rm Xe \hbox{-} Xe}} = {\delta} _{{\rm Xe \hbox{-} Xe}}^{(0)} {\rho} $ , where ρ is the xenon gas density and ${\delta} _{{\rm Xe \hbox{-} Xe}}^{(0)} $ describes the variation of ${\delta} _{{\rm Xe \hbox{-} Xe}} $ with gas density.…”