Chinese Journal of Chemistry
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Recently Published Articles
- You have free access to this contentSpecial Issue of "Supramolecular Chemistry" (page 559)
Article first published online: 22 MAY 2013 | DOI: 10.1002/cjoc.201390012
- Cover Picture: Foldamer-Derived Preorganized Bi- and Tri-zinc Porphyrin Tweezers for a Pentafluorobenzene-bearing Pyridine Guest: The Binding Pattern Study (Chin. J. Chem. 5/2013) (page 557)
Changzhi Li, Xin Zhao, Xiang Gao, Quanrui Wang and Zhanting Li
Article first published online: 22 MAY 2013 | DOI: 10.1002/cjoc.201390011
The cover picture shows the binding gradient effect of two hydrogen bonding-driven foldamer-dirived molecular tweezers. For a pentafluorophenyl-appended pyridine ligand, in the cavity of the tweezer, two binding interactions, i.e., the N-Zn(II) coordination and zinc porphyrin-pentafluorobenzene donor-acceptor interactions stabilize the encapsulation of the ligand in the cavity of the tweezers. After the binding in the cavity take places, further coordination of the ligand from outside the tweezer becomes much less favorable due to the interaction occurring in the cavity, which is evidenced by the UV-vis and 1H and 19F NMR experiments. More details are discussed in the article by Li et al. on page 582–588.
- Cyclodextrin-Based Porous Nanocapsules (pages 569–576)
Youqing Wang and Baohang Han
Article first published online: 21 MAY 2013 | DOI: 10.1002/cjoc.201300270
CD-based porous nanocapsules (CDPNCs) are a class of covalently cross-linked networks based on CDs with a three-dimensional structure. Chemical cross-linking is an important way developed to prepare CDPNCs. CDPNCs can be obtained using different cross-linkers and preparation methods, such as homogeneous method, miniemulsion polymerization, and emulsion-solvent evaporation method. Because of cross-linking, a three-dimensional network is built which forms the porous structure in CDPNCs with the cavities of CDs. CDPNCs not only take on the merits of CDs, including host-guest interaction, molecular recognition, stability, and biocompatibility, but also possess new functions given by the porous structure. CDPNCs are promising nanomaterials which are expected to be applied in diverse fields.
- Highly Selective Fluorescent Recognition towards Th4+ Based on Coumarin-derivatized Crescent Aromatic Oligoamide (pages 689–694)
Rongzhao Gao, Jinchuan Hu, Ke Zhang, Youzhou He, Peng Liu, Shunzhong Luo, Yanqiu Yang, Liang Yang, Wen Feng and Lihua Yuan
Article first published online: 21 MAY 2013 | DOI: 10.1002/cjoc.201300359
A significant fluorescent enhancement was observed upon adding Th4+ for a crescent aromatic oligoamide, allowing a visual detection for Th4+ over some other lanthanide and uranyl ions under UV-light (365 nm).