Weak intermolecular interactions and molecular recognition: structure and dynamics of the benzene and pyridine p-tert-butylcalix[4]arene inclusions

Article Abstract:

Research into weak solid-state interactions focuses on a system of 1:1 host-guest compounds of p-tert-butylcalix[4]arene. It is shown that the pyridine nitrogen is located in the calixarene cavity.

Solid state chemistry

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Applications of hyperpolarized xenon to diffusion in vycor porous glass

Article Abstract:

Applications of hyperpolarized xenon to the measurement of diffusion in porous materials were tested on porous vycor glass. Temperature-dependent measurements were used to derive an activation energy for diffusion of 4.1 kJ/mol.

Industrial Gas Manufacturing, Industrial gases, Noble Gases, Xenon, Optical properties, Magnetic properties, Gases, Rare, Magnetization

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Interactions of water with pyridine and benzene studies by TOF-SIMS

Article Abstract:

Investigation on solvation patterns found in the systems composed of C6H6, C5H5N, and D2O molecules on the basis of temperature evolutions of the TOF-SIMS cation yields, as well as temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) is discussed. From the comparison of the hydration modes between the pyridine and benzene molecules, it is found that the hydrophobic hydration competes with hydrophilic hydration because the water structure formation around the hydrophobic group is distributed if the hydrogen bond is formed.

Industrial Organic Chemicals, Petrochemical Manufacturing, Cyclic Crude and Intermediate Manufacturing, Benzene, Pyridine, Analysis, Photoelectron spectroscopy

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