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Layered ω-Substituted Alkylpyridinium Salts with Inorganic Anions:  Effects of H-Bonding Patterns on the Layer Thickness

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journal contribution
posted on 05.01.2005, 00:00 by Francesco Neve, Oriano Francescangeli
The synthesis and characterization of a carboxy-substituted alkylpyridinium cation with inorganic counterions is reported. Structural evidence points to the formation of a layered structure with mutual recognition of cations through strong O−H···O bonding when halides X- (X = Cl, Br) are chosen. Variation of the anionic component to complex metal ions of [MX4]2- type affords a different layer motif with weaker cation−anion O−H···X−M interactions and interdigitation of functionalized alkyl chains.