title: Diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysenes: solution-phase synthesis and the bowl-to-bowl inversion barrier.
abstract: Diindeno[1,2,3,4-defg;1',2',3',4'-mnop]chrysenes 2 were straightforwardly prepared in around 20% yield from 9,10-diarylphenanthrenes 3 by palladium-catalyzed intramolecular arylations. The bowl-to-bowl inversion barrier for buckybowl 2-iPr is predicted to be approximately 7 kcal mol(-1) based on density functional theory calculations and this value is consistent with the results of a variable-temperature (1)H-NMR study.
authors.affiliation: Department of Chemistry, National Cheng Kung University, No.1 Ta-Hsueh Road, 70101 Tainan, Taiwan.
authors.forename: Hung-Ing
authors.initials: HI
authors.lastname: Chang
authors.forename: Hsin-Ting
authors.initials: HT
authors.lastname: Huang
authors.forename: Cheng-Hao
authors.initials: CH
authors.lastname: Huang
authors.forename: Ming-Yu
authors.initials: MY
authors.lastname: Kuo
authors.forename: Yao-Ting
authors.initials: YT
authors.lastname: Wu