title: A clue to elusive macrocycles: unusually facile, spontaneous polymerization of a hexagonal diethynylbenzene macrocycle.
abstract: [structures: see text] A hexagonal diethynylbenzene macrocycle having exterior octyloxymethyl groups undergoes spontaneous polymerization at room temperature to form hardly soluble materials, in contrast to the corresponding dehydrotetramer and dehydrooctamer, which are stable enough to show their melting points at higher than 140 degrees C.
authors.affiliation: Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka 560-8531, Japan.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Nomoto
authors.forename: Motohiro
authors.initials: M
authors.lastname: Sonoda
authors.forename: Yui
authors.initials: Y
authors.lastname: Yamaguchi
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Ichikawa
authors.forename: Keiji
authors.initials: K
authors.lastname: Hirose
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Tobe