title: Dithiaethyneazuliporphyrin--a contracted heterocarbaporphyrin.
abstract: Dithiaethyneazuliporphyrin, the first contracted carbaporphyrinoid, has been synthesized; the molecule contains an azulene moiety embedded in the [18]dithiacarbatriphyrin(4.1.1) macrocyclic framework.
authors.affiliation: Department of Chemistry, University of Wrocław, F. Joliot-Curie Street 14, Wrocław 50 383, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Berlicka
authors.forename: Natasza
authors.initials: N
authors.lastname: Sprutta
authors.forename: Lechosław
authors.initials: L
authors.lastname: Latos-Grazyński