Browsing by Author "Stagni, S"

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    Ionophoric properties of a tetra-tetrazole functionalised calix[4]arene
    (Taylor and Francis Group, 2015-10-23) D'Alessio, D; Skelton, BW; Lengkeek, NA; Fraser, BH; Krause-Heuer, AM; Muzzioli, S; Stagni, S; Massi, M; Ogden, MI
    The synthesis and characterisation of p-t-butylcalix[4]arene functionalised at the lower rim with four tetrazole moieties is reported. The macrocycle is found to be a poorer ionophore for lanthanoid cations than the bis-tetrazoleā€“substituted analogue. Solution-phase photophysical studies strongly suggested that the cations interacted only weakly with the calixarene ligand. A mixed sodium/triethylammonium salt of the calixarene ligand was crystallised in the presence of lanthanoid cations and structurally characterised. Strong intramolecular interactions are hypothesised to be the cause of the observed behaviour. Ā© 2015 Taylor & Francis