title: Bis(1,3-dioxan-2-yl)arenes: precursors to linked porphyrins.
abstract: The crystal structures of two linked-prophyrin precursors have been determined. In the crystalline state, 1,4-bis[2-(1,3-dioxan-2-yl)phenyl]butane, C24H30O4, (I), exists in a stair-like conformation with dioxane rings in chair conformations. The molecule is positioned on an inversion center. In the crystalline state, 1,2-bis(1,3-dioxan-2-yl)benzene, C14H18O4, (II), is arranged in zigzag chains. In each chain, molecules of (II) are tilted 106.2 (1) degree relative to each other. They are also oriented to form a weak C-H...O contact (H...O 2.43 A).
authors.affiliation: Department of Chemistry, Northwestern University, Evanston, IL 60208-3113, USA.
authors.forename: P G
authors.initials: PG
authors.lastname: Jene
authors.forename: J A
authors.initials: JA
authors.lastname: Ibers
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004146:Dioxanes / Q000737:chemistry*; D008958:Models, Molecular; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D004146:Dioxanes; D011166:Porphyrins