研究者情報 | 神奈川大学

キハラ　ノブヒロ Kihara Nobuhiro 木原　伸浩所属神奈川大学理学部理学科神奈川大学大学院理学研究科理学専攻（化学領域）職種教授
言語種別	英語
発行・発表の年月	2007/02
形態種別	学術雑誌
査読	査読あり
標題	Effect of Steric Barrier on the Shuttling of Rotaxane Having Crown Ether Wheel
執筆形態	共著
掲載誌名	Chem. Lett.
巻・号・頁	36(2),pp.208-209
著者・共著者	Nobuhiro Kihara, Yoshifumi Koike, and Toshikazu Takata
概要	Rotaxanes comprising dibenzo-24-crown-8 and a sym. ammonium salt were desymmetrized by N-acylation. The shuttling behavior was investigated in detail. For the N,N-di-n-alkyl-type axle, the propionyl group was necessary to stop shuttling, whereas the acetyl group was bulky enough for the N,N-dibenzyl-type axle. According to the ΔS (activation) term of the shuttling, the N-formyl and N-acetyl rotaxanes with an N,N-di-n-alkyl-type axle showed similar shuttling frequencies at room temp.
DOI	10.1246/cl.2007.208
ISSN	0366-7022