dft study of hydrogen bonding on calix[8]arene as nanostructure compound

an azobenzene bridge was introduced into the lower (or smaller) rim of p-tert-butylcalix[8]arene to form 1,5-singly bridged calix[8]arene derivatives, respectively. bridged calix[8]arene of conformationally rigid wereisolated. the stability of the two structures of bridged calix[8]arenes have been compared.the study of organicstructure to form nanoporous structures is a well known in chemistry phenomena to finding crystal structure ofcalix[8]arene as supramolecular chemistry. the effect of hydrogen bonding on calix[8]arene was reported atdensity functional theory by gaussian 98 of program package. the self assembled nanotubes in solid statethrough network hydrogen bonds between the chains of this structure were investigated.