Observation of single-crystal-type EPR spectra from monolayers of copper-exchanged zeolite Na-A crystal assembled on glass plates

Article Abstract:

The g(sub z) directions of the hydrated and the full dehydrated copper species was determined by comparing the EPR spectrum of a powder sample with that of microcrystals assembled on glass plates. The results showed that the g(sub z) direction of Cu(super 2+) species D is not compatible with site II in the six-ring plane.

Chemistry, Physical and theoretical, Physical chemistry

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EPR study of copper-exchanged zeolites: effects of correlated g-and A-strain, Si/Al ratio, and parent zeolite

Article Abstract:

A series of copper-exchanged zeolites with varying Si/Al ratios are investigated with the help of EPR spectroscopy. The EPR spectra of dehydrated Cu-mordenite and CuY suggested the presence of two copper sites with different EPR parameters.

Analysis

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Interpretation of the EPR spectra of nitrogen-containing compounds adsorbed on copper-exchanged zeolites

Article Abstract:

Adsorption of a series of amines was used to investigate electron paramagnetic resonance (EPR). This empirical coorelation could be used to determine the number of coordinated nitrogen atoms.

Usage, Copper, Electron paramagnetic resonance, Amines

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