4,5:12,13-dibenzoheptazethrene and 5,6:8,9:14,15:17,18-tetrabenzoheptacene
作者:E. Clar、G.S. Fell、M.H. Richmond
DOI:10.1016/0040-4020(60)80056-7
日期:1960.1
tetradecahydro, octahydro, and dihydro-dibenzoheptazethrenes II, III, and IV respectively. The same hydrocarbons were obtained from the isomeric diketone V, involving a rearrangement. Dehydrogenation of the hydro derivatives or pyrolyses of the diketones in presence of copper powder gave the green dibenzoheptazethrene VI. This is a strongly basic hydrocarbon and forms stable salts VII. Oxidation formed the quinone
The Rolling-Up of Oligophenylenes to Nanographenes by a HF-Zipping Approach
作者:Ann-Kristin Steiner、Konstantin Y. Amsharov
DOI:10.1002/anie.201707272
日期:2017.11.13
nature of oligophenylene‐based precursors efficient regioselective zipping to the target nanostructures was achieved. We show that fluorine positions in the precursor structure unambiguously dictate the “running of the zipping‐program” which results in rolling‐up of linear oligophenylene chains around phenyl moieties yielding target nanographenes. The high efficiency of zipping makes this approach attractive