75956-63-7Relevant articles and documents
Large Oligocyclic Cavities for Strong Cation Complexation
Kiggen, W.,Voegtle, F.,Franken, S.,Puff, H.
, p. 1859 - 1872 (1986)
The syntheses of oligocyclic large cavities containing two or three catechol subunits are described.The X-ray analysis of a heptacyclic molecule composed of three triply clamped dimethyl catechol ether units demonstrates the size and shape of the cavity formed by this skeleton.Properties of the Fe(3+)- and Ga(3+)-complexes are elucidated by (1)H-NMR, IR, UV/Vis spectra, and by competition experiments with an open-chained reference ligand.