Investigation of oligomer sequences with specific secondary structures

2014 Fiscal Year Final Research Report

• Project/Area Number: 25620060
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: NAKASHIMA Takuya 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 (70379543)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 合成化学 / 構造 / 超分子化学 / 共役分子 / ナノワイヤ

Outline of Final Research Achievements

Oligo(2-phenylthiazole)s with alpha-beta-connectivity were synthesized and the conformational preferences were studied by means of NMR and X-ray crystallography. The oligothiazoles with head-to-tail connectivity were found to preferentially form helical structures. Interestingly, the hexamer showed chiral crystallizaion, where the achiral hexamer crystallized into chiral crystals with an identical helical handedness. The oligomers with inversion connectivity were capable of photochromic reaction, showing the dynamic modulation of helical structure.

Free Research Field

機能物質科学