title: Amidourea-based hydrogen-bonded heteroduplexes: structure and assembling selectivity.
abstract: A new class of multiply hydrogen-bonded heteroduplexes from readily available amidourea derivatives was designed, and their structures and selective assembling behaviors were investigated. Amidourea derivative 3 could selectively assemble with 1 to form a stable heteroduplex via eight intermolecular bifurcated hydrogen bonds, but could not assemble with 2 at all, because of their unique structures and the spacing effect, although 1 and 2 possessed the same hydrogen-bonding sequence. The high stability and selectivity will make the amidourea-based hydrogen-bonded heteroduplexes be potentially applicable in the design of well-defined supramolecular architectures and novel functional materials.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Wei-Jun
authors.initials: WJ
authors.lastname: Chu
authors.forename: Jianming
authors.initials: J
authors.lastname: Chen
authors.forename: Chuan-Feng
authors.initials: CF
authors.lastname: Chen
authors.forename: Yong
authors.initials: Y
authors.lastname: Yang
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Shuai
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D046911:Macromolecular Substances / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D014508:Urea / Q000031:analogs & derivatives* / Q000737:chemistry*
chemical_list: D046911:Macromolecular Substances; D014508:Urea