Answers are grounded in this paper and cite their sources.
bonds. The (i) absence of repulsive electrostatic iron⋯cation interactions, or (ii) the presence of oxygen atoms with large electron density, ensures carboxylic acid-functionalized crown ethers have more favorable interactions with cations than ferrocene compounds. Therefore, this work has demonstrated how cation recognition can be improved by structural changes in carboxylic acid- or ferrocene-functionalized crown ethers and has shown that the carboxylic acid molecules appear to be better candidates for cation recognition than ferrocene derivatives.
No takes yet. Share an insight, caveat, or question.
Orenha et al. (2023) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: