Infrared Analysis of the Orientation of Pyridine Molecules in Clay Complexes

J. M. Serratosa
1966 Clays and clay minerals  
INFRARED spectroscopy affords a useful method for the determination of the orientation of molecules sorbed on layer silicates. The orientation of the molecules can be inferred from the observed dichroism of specific absorption bands. Examples of the analysis are illustrated in three complexes with pyridine. One fiat and one vertical orientation are observed for the ionic form dependent on layer charge. A different vertical orientation is observed for the neutral molecule. The intmrpretation of
more » ... intmrpretation of the infrared absorption analysis is confirmed by X-ray diffraction.
doi:10.1346/ccmn.1966.0140133 fatcat:yjd4u5fqirgvba45mdatqybafq