マツモト　コウゾウ   MATSUMOTO Kouzou   松本 幸三    所属   専修大学  経営学部    職種   教授
言語種別	英語
発行・発表の年月	2008/12
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Tetrahedral Oligothiophenes; Synthesis, X-ray Analysis, and Optoelectronic Properties of Highly Symmetrical, 3D-Branched Oligothiophenes
執筆形態	共著
掲載誌名	Chemistry an Asian Journal
掲載区分	国外
出版社・発行元	Wiley-VCH
巻・号・頁	3(12),pp.2024-2032
総ページ数	9
著者・共著者	◎Kouzou Matsumoto, Toru Tanaka, Sota Kugo, Takuya Inagaki, Yasukazu Hirao, Hiroyuki Kurata, Takeshi Kawase, Takashi Kubo
概要	Tetrakis(bithienyl)methane and tetrakis(terthienyl)methane have been synthesized from tetrakis(2-thienyl)methane by use of Suzuki-Miyaura coupling as a key reaction. Their trimethylsilyl (TMS) derivatives are also synthesized. X-Ray analysis reveals that each oligothiophene moiety tends to take anti-conformations and show relatively high planarity. While the longest absorption maxima of these tetrakis(oligothienyl)methanes exhibit only slight bathochromic shift compared to the corresponding linear oligothiophene derivative, tetrakis(bithienyl)methane and its TMS derivative exhibit appreciable red-shift in their fluorescence spectra. The intramolecular interaction between thienyl groups of tetrakis(2-thienyl)methane is supported by DFT calculation.
DOI	10.1002/asia.200800288