B. Turner et al., Selective anion binding and solid-state host-guest chemistry of an extended cavity calix[6]pyrrole, CHEM COMMUN, (01), 2001, pp. 13-14
Easily prepared, cone-like, extended cavity calix[6]pyrrole is shown to for
m strong complexes with iodine and other halide ions as well as with trihal
oalkanes and electron deficient aromatic systems.