title: Equilibrium crossing exhibited by an ethynylhelicene (M)-nonamer during random-coil-to-double-helix thermal transition in solution.
abstract: The structural change between the random-coil and the double-helix of an ethynylhelicene (M)-nonamer during heating crosses equilibrium. This is a phenomenon where a chemical reaction crosses equilibrium and returns to equilibrium. It is due to an accelerated rate of formation of the double-helix by self-catalysis and an equilibrium shift.
authors.affiliation: Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan. yama@m.tohoku.ac.jp.
authors.forename: Masamichi
authors.initials: M
authors.lastname: Miyagawa
authors.forename: Atsushi
authors.initials: A
authors.lastname: Yagi
authors.forename: Masanori
authors.initials: M
authors.lastname: Shigeno
authors.forename: Masahiko
authors.initials: M
authors.lastname: Yamaguchi
mesh_terms: D002384:Catalysis; D008968:Molecular Conformation; D011083:Polycyclic Compounds / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014050:Toluene / Q000737:chemistry
chemical_list: D011083:Polycyclic Compounds; D012996:Solutions; C560958:ethynylhelicene; D014050:Toluene