Equation of state for hydrogen-bonded systems

Article Abstract:

Comparison of the equation of state for hydrogen-bonded systems in the framework of the mean field theory with actual experimental data reveals that these systems possess a simple, generalized equation. The partition function of the system is the contribution of hydrogen bonds. This function may be calculated using values corresponding to the different kinds of proton donors and acceptors. Calculation of the pressure may be simplified using the explicit dependence of the free energy on the system volume. Free energy may also be differentiated from other thermodynamic quantities.

Models, Hydrogen bonding, Hydrogen bonds, Chemical equations

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Formation and characteristics of Cu colloids from CuO powder by laser irradiation in 2-propanol

Article Abstract:

A study prepared copper colloids from 99.999% CuO powder in 2-propanol using the laser ablation technique that employed wavelengths of 1064 nm and 532 nm. Detailed investigations of these conspicuously stable copper colloids with large mean sizes found that their production and properties displayed wavelength dependence. The colloids prepared in this experiment provide an opportunity to conveniently and directly probe the surface-enhanced Raman scattering without the influence of ions or stabilizer reagents.

Research, Copper, Colloids, Amorphous substances, Amorphous materials

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The mechanism of hydrogen formation induced by low-energy irradiation of hexadecanethiol self-assembled monolayers

Article Abstract:

The mass-selected detection of hydrogen produced during low-energy electron irradiation in mixed self-assembled monolayers containing fully hydrogenated hexadecanethiol (h33-C16) and its fully deuterated analogue (d33-C16) is reported. The results presented in this work are intended to discriminate between two molecular hydrogen processes leading to the release of molecular hydrogen during low-energy electron irradiation.

Radiation chemistry, Electrons, Chemical properties

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