Hexadecadehydrodibenzo[20]-, Tetracosadehydrotribenzo[30]-, and Dotriacontadehydrotetrabenzo[40]annulenes: Syntheses, Characterizations, Electronic Properties, and Self-Associations

详细信息    查看全文

• 作者：Shin-ichiro Kato ; Nobutaka Takahashi ; Yosuke Nakamura
• 刊名：The Journal of Organic Chemistry
• 出版年：2013
• 出版时间：August 2, 2013
• 年：2013
• 卷：78
• 期：15
• 页码：7658-7663
• 全文大小：312K
• 年卷期：v.78,no.15(August 2, 2013)
• ISSN：1520-6904

文摘

Hexadecadehydrodibenzo[20]-, tetracosadehydrotribenzo[30]-, and dotriacontadehydrotetrabenzo[40]annulene derivatives ([20]-, [30]-, and [40]DBAs) possessing tetrayne linkages were synthesized. X-ray diffraction analysis demonstrated that the molecules of [30]DBA and p-xylene form a 2D sheetlike structure. Planar [20]- and [30]DBAs show significantly weak or almost no tropicity. The extension of the acetylenic linkages from a diyne to a tetrayne unit narrows HOMO鈥揕UMO gaps. The self-association behavior of [30]DBA in solution resulting from effective 蟺鈥撓€ stacking interactions was observed.