The adsorption of primary alcohols and amines on alkali metal containing micro- and mesoporous molecular sieves was investigated by vibrational spectroscopic methods. Alcohols and amines adsorb primarily via their oxygen and nitrogen atoms, respectively, on the alkali metal cations. On aluminum rich, highly polar zeolitic materials, additional lateral hydrogen bonds are formed with the framework oxygen atoms. In contrast to the zeolites, no lateral interactions have been observed on delaminated molecular sieves (ITQ-2). This is justified for the low concentration of framework aluminum atoms, thus, at a low framework polarity. The strongly corrugated surfaces of the 3 nm thick layers also cannot enhance the lateral interactions. The lateral and intermolecular interactions are primarily the consequence of the chemical composition and not of the structural features.
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The adsorption of primary alcohols and amines on alkali metal containing micro- and mesoporous molecular sieves was investigated by vibrational spectroscopic methods. Alcohols and amines adsorb primarily via their oxygen and nitrogen atoms, respectively, on the alkali metal cations. On aluminum rich, highly polar zeolitic materials, additional lateral hydrogen bonds are formed with the framework oxygen atoms. In contrast to the zeolites, no lateral interactions have been observed on delaminated...
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