Development of pi-expanded aromatic compounds by precursor approach

2015 Fiscal Year Final Research Report

• Project/Area Number: 25288092
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Organic and hybrid materials
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: YAMADA Hiroko 奈良先端科学技術大学院大学, 物質創成科学研究科, 教授 (20372724)
• Co-Investigator(Kenkyū-buntansha): KUZUHARA Daiki 奈良先端科学技術大学院大学, 物質創成科学研究科, 助教 (00583717) ; ARATANI Naoki 奈良先端科学技術大学院大学, 物質創成科学研究科, 准教授 (60372562)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 機能性有機材料 / ペンタセン / TTF / BODIPY / イソインドール / 有機半導体材料 / 発光材料

Outline of Final Research Achievements

"Precursor approach" provides a nonconventional means towards the achievement of irreversible change of solubility, color, fluorescence quantum yields, semiconductivity etc in solution, film and solid, by in-situ photoreaction or thermal reaction. We have prepared several pi-expanded aromatic compounds with this approach for the development of functional materials: 1) synthesis of pi-expanded aromatic compounds like pentacene dimer, which is difficult to be prepared by conventional means because of the instability of pentacene; 2) synthesis of heterocyclic pi-expanded molecules like push-pull indolizino[5,6-b]quinoxaline derivatives, tetracene-TTF, and benzotriphyrin(2.1.1) compounds; 3) synthesis of latent fluorescence materials, an optically and thermally switchable electronic structure based on an qnthracene--BODIPY conjugate and highly fluorescentpyrene-dyes from non-luminous precursors.

Free Research Field

機能性有機化学