title: Electron-deficient triphenylene and trinaphthylene carboximides.
abstract: A series of triphenylene and trinaphthylene carboximides were synthesized mainly through Diels-Alder reactions between the in situ generated radialenes and N-alkylmaleimides. High electron affinity was obtained due to the attachment of electron-withdrawing carboximide groups. These disklike molecules can assemble into one-dimensional columnar structures in solid state and their mesophase properties were characterized by DSC, POM, and X-ray diffraction. Long-range ordered columnar phase was observed, qualifying them as potential n-type semiconductors in electronic devices.
authors: Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543.
authors: Jun
authors: J
authors: Yin
authors: Hemi
authors: H
authors: Qu
authors: Kai
authors: K
authors: Zhang
authors: Jing
authors: J
authors: Luo
authors: Xiaojie
authors: X
authors: Zhang
authors: Chunyan
authors: C
authors: Chi
authors: Jishan
authors: J
authors: Wu