title: An anthracene dimer with a fused 1,3-dithiole ring at 193 K.
abstract: The first butterfly-shaped anthracene dimer including S atoms,8,9-dihydro-3a,8[1',2']:9,13b[1",2"]dibenzenodibenzo[3,4:7,8]cycloocta[1,2-d]-1,3-dithiole, C29H20S2, contains an exceptionally long Csp3-Csp3 bond of 1.672 (2) A in the fused 1,3-dithiole ring. The length of the other bond bridging the anthracene moieties is 1.604 (3) A.
authors.affiliation: Department of Chemistry, Laboratory of Inorganic Chemistry, PO Box 55, 00014 University of Helsinki, Finland. jarno.kansikas@helsinki.fi
authors.forename: Jarno
authors.initials: J
authors.lastname: Kansikas
authors.forename: Kaija
authors.initials: K
authors.lastname: Sipilä