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Anion Receptors Selective for Oxoanions of Phosphorus and the Importance of Partial Charge
Author(s) -
Sohn Dae Hyup,
Ohn Takbum,
Han Eunbi,
Atar Amol Balu,
Cho Seung Joo,
Kang Jongmin
Publication year - 2021
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.12162
Subject(s) - chemistry , phosphate , phosphorus , hydrogen bond , affinities , ion , acceptor , inorganic chemistry , receptor , hydrogen , charge (physics) , oxygen , stereochemistry , molecule , organic chemistry , biochemistry , physics , quantum mechanics , condensed matter physics
We have developed new symmetric receptors 1 and 2, which bind selectively to oxoanions of phosphorus such as phosphinates and dihydrogen phosphate. Among the phosphinates and dihydrogen phosphate, we have investigated the orders of binding affinities to receptors 1 and 2 are Me2PO2− > H2PO4− > PhHPO2− and Me2PO2− > H2PO4−, respectively. We further investigated the physicochemical reasons for this order by theoretical calculations. Calculation results were in good agreement with experimental results. The order of affinity for the anions seemed to depend on the magnitude of the partial charge of oxygen (hydrogen bond acceptor) present in the anion.