Molecular recognition in terms of a dimensionless index. 2. Thermodynamic patterns of intermolecular interactions of PEG and its alcohol substrates

Article Abstract:

The systems containing poly(ethylene glycol ) (PEG) receptor and its alcohol substrate are used for examining molecular exo-recognition between their constituent components in terms of the dimensionless index. The studies have shown that two sorts of patterns of intermolecular orientation-based fitting between the PEG receptor and its alcohol substrate are responsible for the thermodynamic behavior accompanied by alcohol-PEG interactions on the two different kinds of PEG receptors.

Liquid chromatography, Thermal properties, Thermodynamics, Polyethylene glycol, Structure

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Inhibition due to the interaction of polyethylene glycol, chloride, and copper in plating baths: a surface-enhanced Raman study

Article Abstract:

The potential-dependent behavior of poly(ethylene glycol), with or without chloride ion in a copper electroplating bath is investigated using the surface-enhanced Raman spectroscopy technique. The spectroscopic evidence strongly suggests the formation of a PEG-Cu-Cl complex.

Usage, Raman spectroscopy, Chlorides, Dichloropropane, Plating baths

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Molecular recognition in terms of a dimensionless index. 1. A theoretical model of the orientation-based fit and its applicability to ligand-macromolecule systems

Article Abstract:

Large quantities of thermodynamic parameters that characterize the formation of weakly bound complexes are explained. For this purpose, the mean field approximation and the perturbation theory is applied to correlate these parameters with the weak complexes.

Chemistry, Physical and theoretical, Physical chemistry, Chemical equations

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