Spectroscopic and semiempirical studies of a proton channel formed by the methyl ester of monensin A

Article Abstract:

Methyl ester (MONI) and hydrates of monensin A are studied in acetonitrile, and its deuterated analogue by Fourier transform infrared and [sup. 1.H] and [sup. 13.C] NMR spectroscopies as well as by vapor pressure osmotic and PM5 semiempirical methods. The formation of the hydrates starts with a transfer of a proton from the OIV-H hydroxyl group of MONI to an oxygen atom of a water molecule, which is subsequently hydrated by other water molecules forming the (MONI + 3H2O) species.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Methyl Ether, Usage, Nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, Monensin

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Synthesis and structure characterization of chromium oxide prepared by solid thermal decomposition reaction

Article Abstract:

The synthesis of controlled mesoporous chromium oxide (Cr2O3) nanocrystals by the thermal decomposition reaction of chromium salt, which is an inexpensive process to obtain mesoporous nanocrystals is reported. As-prepared particles are formed through the aggregation of the primary 3-4 nm nanocrystals and possess mesoporous structures.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Chromium Compounds, Analysis, Oxides, Chemical synthesis

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