期刊
MOLECULES
卷 26, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/molecules26185670
关键词
host-guest chemistry; dendrimers; supramolecular chemistry
资金
- GRANTOVA AGENTURA CESKE REPUBLIKY [20-07833S]
- MINISTERSTVO SKOLSTVI, MLADEZE A TELOVYCHOVY [A2_FCHI_2021_002]
The repetition of urea-based binding units within the receptor structure determines the function of the whole receptor molecule by allocating active moieties to mutual positions. Bivalent receptors form self-aggregates, while dendritic receptors with low dihydrogen phosphate loadings offer cooperative complexation mode.
The repetition of urea-based binding units within the receptor structure does not only lead to monomer properties multiplication. As confirmed by spectroscopic studies, UV-Vis and H-1-NMR in classical or competitive titration mode, the attachment to a carrier allocates the active moieties to mutual positions predetermining the function of the whole receptor molecule. Bivalent receptors form self-aggregates. Dendritic receptors with low dihydrogen phosphate loadings offer a cooperative complexation mode associated with a positive dendritic effect. In higher dihydrogen phosphate concentrations, the dendritic branches act independently and the binding mode changes to 1:1 anion: complexation site. Despite the anchoring, the dendritic receptors retain the superior efficiency and selectivity of a monomer, paving the way to recyclable receptors, desirable for economic and ecological reasons.
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