Dynamics of spin-correlated radical pairs in non-ionic surfactant solutions

Article Abstract:

Time-resolved (CW) electron paramagnetic resonance spectroscopy (TREPR) was used to investigate the different dynamics of radical pairs created in micelles made from nonionic, poly (ethylene glycol) (PEG)- based surfactants (Brij-35, Triton X-100, and Cremophor EL). Spectral simulation and comparison to other PEG radicals show that H-atom abstraction is taking place in PEG outer shell of Brij-35 and Triton X-100micelles rather than in the alky chain core.

---

Dynamics, site binding, and distribution of counterions in polyelectrolyte solutions studied by electron paramagnetic resonance spectroscopy

Article Abstract:

Quantitative information is obtained on the structure, dynamics, and spatial distribution of contact ion pairs formed by site binding of divalent counterions to a polyelectrolyte. The experiment provides an estimate of 20 % site-bound and 80 % territorially bound divalent counterions in glycerol/water glassy frozen solution.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Chemistry, Analytic, Quantitative chemical analysis

---

Interstitial OH radicals in [F.sub.2]-laser-irradiated bulk amorphous Si[O.sub.2]

Article Abstract:

An interstitial hydroxyl radical is generated in bulk amorphous Si[O.sub.2] loaded with interstitial [H.sub.2]O molecules and exposed to [F.sub.2] laser light. [F.sub.2] laser light dissociates an O-H bond of interstitial [H.sub.2]O into a pair of hydrogen atom and interstitial hydroxyl radical.

Hydrogen bonding, Hydrogen bonds, Radiation chemistry, Chemical properties

Similar abstracts:

• Abstracts: Influence of conformational free energy of hydrocarbon chains on adsorption of nonionic surfactants at the air/solution interface
• Abstracts: Dynamics of surface catalyzed reactions; the roles of surface defects, surface diffusion, and hot electrons. Model Ziegler-Natta polymerization catalysts fabricated by reactions of Mg metal and TiCl4: film structure, composition, and deposition kinetics
• Abstracts: Dielectric properties of C70-solvate crystals grown from a benzene solution. Molecular Dynamics of C70S48: Dielectric Function and NMR Study
• Abstracts: Importance of van der Waals interactions in QM/MM simulations. Phenomenological models for the generic van der Waals equation of state and critical parameters

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.