title: The formation of a hydrated homochiral helix from an achiral zwitterionic salt, spontaneous chiral symmetry breaking and redox chromism of crystals.
abstract: A unique supramolecular helix assisted by water tetramers is obtained by static evaporation of aqueous solution of a zwitterionic salt, 1,1'-bis(4-carboxylatebenzyl)-4,4'-bipyridinium; spontaneous chiral symmetry breaking occurs in crystallization; interestingly, redox chromism behavior of crystals upon exposure to alcohol atmosphere has been observed.
authors.affiliation: Graduate School of the Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
authors.forename: Qing-Xia
authors.initials: QX
authors.lastname: Yao
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Xuan
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Chao-Yang
authors.initials: CY
authors.lastname: Tu
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D002942:Circular Dichroism; D003460:Crystallization; D006860:Hydrogen Bonding; D008027:Light; D008958:Models, Molecular; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D011108:Polymers / Q000737:chemistry; D011726:Pyridinium Compounds / Q000737:chemistry*; D019163:Reducing Agents; D013237:Stereoisomerism; D014755:Viologens / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: C538769:1,1'-bis(4-carboxylatebenzyl)-4,4'-bipyridinium; D011108:Polymers; D011726:Pyridinium Compounds; D019163:Reducing Agents; D014755:Viologens; C024627:polymeric viologens; D014867:Water