title: A triphenylene-based triptycene with large free volume synthesized by zirconium-mediated biphenylation.
abstract: Biphenylation using (Li(THF)(4))(2) x Zr(biphe)(3) of hexabromotriptycenes bearing H (1-H) or Bu (1-Bu) at the bridgeheads gave triptycenes with triphenylene blades. The blades extend both perpendicular and parallel to the 3-fold axis and generate a large intramolecular free volume (IMFV) (1-H, AM1, 710 A(3); cf. triptycene, AM1 71 A(3)). Crystals of 1-H could not be obtained. Triptycene 1-Bu, in which the Bu groups fill the voids near the bridgehead, was crystalline. X-ray diffraction analysis revealed crystal packing with alternating, interlocked corrugated and distorted hexagonal layers.
authors.affiliation: Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, USA.
authors.forename: Cameron L
authors.initials: CL
authors.lastname: Hilton
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Jamison
authors.forename: Hannah K
authors.initials: HK
authors.lastname: Zane
authors.forename: Benjamin T
authors.initials: BT
authors.lastname: King
mesh_terms: D000873:Anthracenes / Q000138:chemical synthesis* / Q000737:chemistry; D002911:Chrysenes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013237:Stereoisomerism; D015040:Zirconium / Q000737:chemistry*
chemical_list: D000873:Anthracenes; D002911:Chrysenes; D009942:Organometallic Compounds; C009590:triphenylene; D015040:Zirconium; C520712:triptycene