Creation of novel large quinoidal conjugated molecular material toward organic electronics

2015 Fiscal Year Final Research Report

• Project/Area Number: 26810024
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Organic chemistry
• Research Institution: Kyushu University
• Principal Investigator: Ishida Masatoshi 九州大学, 分子システムデバイス国際リーダー教育センター, 助教 (60706951)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: π共役 / ポルフィリン / テトラチアフルバレン / ラジカル

Outline of Final Research Achievements

We have synthesized novel nonaromatic π-conjugated macrocycle based on various tetrathiafulvalene-derived structures. The formation of supramolecular ensembles composing of two dicationic porphyrin-bridged extended TTF derivative and a tetraanionic porphyrin derivatives were characterized and achieved the extremely long-lived photoinduced charge separated states (τCS ~ 83 ms). In a case of TTF-annulated expanded porphyrin, the protonation-induced thermal charge separation between the porphyrin and TTF units was observed.
In a similar design principle, we have also succeeded in the preparation of stable π radical complex based on a contracted N-confused hexaphyrin derivatives.

Free Research Field

構造有機化学