title: adj-Dicarbachlorin, the first free base carbaporphyrinoid system with an internal methylene unit.
abstract: Base-catalyzed condensation of dicyclopentadienylmethane with a dipyrrylmethane dialdehyde gave a dicarbachlorin with an internal CH2 group. This unusual porphyrinoid retained highly diatropic characteristics and exhibited a porphyrin-like UV-vis spectrum.
authors.affiliation: Department of Chemistry, Illinois State University, Campus Box 4160, Normal, Illinois, USA. tdlash@ilstu.edu.
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Lash
authors.forename: Deyaa I
authors.initials: DI
authors.lastname: AbuSalim
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Ferrence