Bis(trimethylammonium) alkane diiodides dynamically encapsulate dicarboxylic acids through intermolecular hydrogen bonds between the Iâanions of the hosts and the carboxylic OH groups of the guests. A selective recognition is realized when the size of the I-... HOOC(CH2/CF2)nCOOH... I- superanion matches the dication alkyl chain length. Dynamic recognition is also demonstrated in solution, where the presence of the size-matching organic salt boosts the acid solubility profile, thus allowing efficient mixture separation.
Dicarboxylic Acid Separation by Dynamic and Size-Matched Recognition in Solution and in the Solid State
Kumar, Vijith;Pilati, Tullio;Terraneo, Giancarlo;Resnati, Giuseppe;Metrangolo, Pierangelo
2018-01-01
Abstract
Bis(trimethylammonium) alkane diiodides dynamically encapsulate dicarboxylic acids through intermolecular hydrogen bonds between the Iâanions of the hosts and the carboxylic OH groups of the guests. A selective recognition is realized when the size of the I-... HOOC(CH2/CF2)nCOOH... I- superanion matches the dication alkyl chain length. Dynamic recognition is also demonstrated in solution, where the presence of the size-matching organic salt boosts the acid solubility profile, thus allowing efficient mixture separation.File in questo prodotto:
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