The Six-membered ring spiro chains is the graph representations of an important subclass of Linear unbranched,multispiro simplified skeleton molecules,in which every ring is six-membered ring.

We presented a novel self-assembly system of cucurbit[6]uril with a serials 1,ω-bisbenzoimdazolyl alky guest controlled by the ratio of host-guest which characterized by X-Ray diffraction.

Cucurbit[6]uril adducts with metal cation and naphthylamine in the water, be a new supramolecular adducts.

Condensed Fukui function(CFF)was used to predict the reactive sites in electrophilic substitution ofpenta-heterocycles(pyrrole and furan),hexa-heterocycle(pyridine)and a series of mono-substituted heterocycles(ortho-,meta-and para-).