期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 10, 期 35, 页码 7045-7052出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ob25680k
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资金
- NUS [R-143-000-486-133]
- MOE AcRF Tier 1 [R-143-000-510-112]
A series of linear and star-shaped pyrazine-containing acene molecules 1a-b, 2a-b and 3 substituted by dicarboximide groups are synthesized via condensation reactions between o-diamine and dione. High electron affinity (up to 4.01 eV) is achieved due to the introduction of an electron-deficient pyrazine moiety and the attachment of electron-withdrawing dicarboximide groups. Some of these molecules show thermal liquid crystalline behavior and their space-charge limited current mobilities are measured. The high electron affinity and liquid crystalline property qualify them as promising electron transporting materials in organic optoelectronic devices.
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