title: First zipper-featured molecular duplexes driven by cooperative donor-acceptor interaction.
abstract: [structure: see text] The first class of zipper-shaped artificial duplexes, which are driven by multiple donor-acceptor interactions between electron-rich 1,5-dioxynaphthalene or 1,4-dioxybenzene and electron-deficient pyromellitic dimide units, have been studied in organic media by (1)H NMR, UV-vis, and vapor pressure osmometry. (1)H NMR binding investigations reveal substantial cooperativity of the donor-acceptor interaction in the duplexes.
authors.affiliation: Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China.
authors.forename: Qi-Zhong
authors.initials: QZ
authors.lastname: Zhou
authors.forename: Xi-Kui
authors.initials: XK
authors.lastname: Jiang
authors.forename: Xue-Bin
authors.initials: XB
authors.lastname: Shao
authors.forename: Guang-Ju
authors.initials: GJ
authors.lastname: Chen
authors.forename: Mu-Xin
authors.initials: MX
authors.lastname: Jia
authors.forename: Zhan-Ting
authors.initials: ZT
authors.lastname: Li