title: Argentivorous molecules bearing two aromatic side-arms: Ag+-π and CH-π interactions in the solid state and in solution.
abstract: Seven double-armed cyclens bearing two aromatic side-arms, at the 1- and 7-positions of the cyclens, were prepared via three steps from dimethyl 2,2'-iminodiacetate. The X-ray structures of the Ag(+) complexes and Ag(+)-ion-induced (1)H NMR spectral changes suggest that the two aromatic side-arms cover the Ag(+) ions incorporated in the ligand cavities, as if the aromatic ring "petals" catch the Ag(+) ions in the way a real insectivorous plant (Venus flytrap) catches insects, using two leaves. It is also reported that the CH-π interactions between the aromatic side-arms, as well as the Ag(+)-π interactions, are crucial for double- and tetra-armed cyclens to work as argentivorous molecules.
authors: Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan. habata@chem.sci.toho-u.ac.jp
authors: Yoichi
authors: Y
authors: Habata
authors: Aya
authors: A
authors: Taniguchi
authors: Mari
authors: M
authors: Ikeda
authors: Takao
authors: T
authors: Hiraoka
authors: Noriko
authors: N
authors: Matsuyama
authors: Sakiko
authors: S
authors: Otsuka
authors: Shunsuke
authors: S
authors: Kuwahara
mesh_terms: D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011789:Quantum Theory; D012834:Silver / Q000737:chemistry*; D012996:Solutions
chemical_list: D006841:Hydrocarbons, Aromatic; D009942:Organometallic Compounds; D012996:Solutions; D012834:Silver