Influence of ortho- and meta-substituted N-heterocyclic dications towards the self-assembly of p-sulfonatocalix[4]arene

Sze Le Loh, Alexandre N. Sobolev, Siew Huah Lim, Irene Ling

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    The interplay of organic dications bearing various n-alkylimidazolium termini substituted at different positions on a bis(methylene)phenyl ring and p-sulfonatocalix[4]arene, along with tetraphenylphosphonium cations and hydrated lanthanides (Ce3+, Er3+ and Gd3+), afforded various self-assembled solid-state structures. The host-guest binding behaviour of the dications and p-sulfonatocalix[4]arene was carefully investigated by crystallographic studies including their interactions in the solution state, but in the absence of phosphonium and lanthanide cations via1H NMR experiments.

    Original languageEnglish
    Pages (from-to)52-60
    Number of pages9
    Issue number1
    Publication statusPublished - 7 Jan 2019

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