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- W3189797839 abstract "Abstract Monofunctionalization of cucurbiturils is essential for transferring these potent supramolecular macrocyclic hosts into real‐world application. Here, we present the synthesis of cucurbit[6]urils 1 and 2 in which one methylene bridge is modified by a single substituent containing a nitro or an ammonium group. We investigated host–guest properties in water and 0.2 M NaCl using 1 H NMR and isothermal titration calorimetry, particularly for 2 . The macrocycle 2 self‐associated into dimeric aggregates in pure water, but readily disassembled in the presence of NaCl or organic cations. Cucurbit[7]uril was able to encapsulate the ammonium substituent of 2 inside its cavity resulting in a complex of 1 : 1 stoichiometry with an association constant of 3.1×10 5 M −1 . The presented host–guest properties together with further possible derivatization showcase the potential of cucurbiturils modified in the methylene position such as 1 and 2 for the development of advanced supramolecular systems." @default.
- W3189797839 created "2021-08-16" @default.
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- W3189797839 date "2021-09-02" @default.
- W3189797839 modified "2023-10-17" @default.
- W3189797839 title "Cucurbiturils Monofunctionalized on the Methylene Bridge and Their Host‐Guest Properties" @default.
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- W3189797839 doi "https://doi.org/10.1002/ejoc.202100705" @default.
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