Dianthraceno[a,e]pentalenes: synthesis, crystallographic structures and applications in organic field-effect transistors
作者:Gaole Dai、Jingjing Chang、Wenhua Zhang、Shiqiang Bai、Kuo-Wei Huang、Jianwei Xu、Chunyan Chi
DOI:10.1039/c4cc07630c
日期:——
Two stable dianthraceno[a,e]pentalenes were synthesized and DAP2 exhibited a high charge carrier mobility of 0.65 cm2 V−1 s−1 due to its dense packing.
A Reiterative Approach to 2,3-Disubstituted Naphthalenes and Anthracenes
作者:Daniel M. Bowles、John E. Anthony
DOI:10.1021/ol991254w
日期:2000.1.1
trimethylsilyl derivatives. Cycloaromatization of these halogenated enediynes leads to the otherwise difficult to prepare 2,3-dibromoarenes in good yield. Alkynylation of the resulting haloaromatic compound regenerates the soluble enediynesystem, homologated by one aromatic ring. This iterative methodology can be terminated by the cycloaromatization of the unsubstituted enediyne, providing the simple acene
Extended triptycenes 5a,b and 7a-c have been designed to serve as convenient building blocks for a stepwise ramification of the parent triptycene structure by Diels-Alder oligomerization.
characterized. In these compounds, the diatropic ring current on the benzene ring adjacent to the disilacyclobutadiene moiety decreases while that on the other benzene rings remains intact. The longest-wavelength absorption bands of 3 and 4 were hypsochromically shifted compared to those of benzodisilacyclobutadiene 1a despite the extended π-electron systems.
(Aza)Acenes Share the C2 Bridge with (Anti)Aromatic Macrocycles: Local vs. Global Delocalization Paths
作者:Krzysztof Bartkowski、Miłosz Pawlicki
DOI:10.1002/anie.202011848
日期:2021.4.12
a crucial role in tuning of the properties that would be showing a dependence on the efficiency of π‐electrons coupling. The π‐cloud available in the final structure can be drastically influenced by a side‐ or a linear fusion of unsaturated and conjugated hydrocarbons. The linear welding of naphthalene/anthracene or quinoxaline/benzo[g]quinoxaline with triphyrin(2.1.1) gives structures where the competition