title: Extremely large cavity assembled by self-interlocking of distorted biconcave porphyrins.
abstract: X-Ray analyses of free base, zinc, and nickel complexes of 2,3;7,8;12,13;17,18-tetrakis(6,13-dihydro-6,13-pentaceno)-21H,23H-porphine revealed that the porphyrin chromophores adopted a heavily-saddled conformation by interlocking of the biconcave porphyrins in the crystals containing halobenzenes as crystalline solvents, while the ring was almost flat in the crystals obtained from benzene or from chlorobenzene and isopropanol.
authors.affiliation: Division of Synthesis and Analysis, Department of Molecular Science, Ehime University, Matsuyama 790-8577, Japan. uno@dpc.ehime-u.ac.jp
authors.forename: Hidemitsu
authors.initials: H
authors.lastname: Uno
authors.forename: Hikaru
authors.initials: H
authors.lastname: Watanabe
authors.forename: Yuko
authors.initials: Y
authors.lastname: Yamashita
authors.forename: Noboru
authors.initials: N
authors.lastname: Ono
mesh_terms: D003460:Crystallization; D006576:Heterocyclic Compounds, 4 or More Rings / Q000138:chemical synthesis / Q000737:chemistry*; D019216:Metals, Heavy / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D016062:Porosity; D011166:Porphyrins / Q000737:chemistry*; D013237:Stereoisomerism; D014961:X-Ray Diffraction
chemical_list: D006576:Heterocyclic Compounds, 4 or More Rings; D019216:Metals, Heavy; D009942:Organometallic Compounds; D011166:Porphyrins