Synthesis of molybdenocene(IV) and tungstenocene(IV) tropolonato complexes: Its derivative containing calix[4]arene moiety |
| |
| Authors: | Makoto Minato Jian-Guo Ren Koji Munakata |
| |
| Institution: | a Department of Materials Chemistry, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
b Department of Chemistry, Shanxi University, Taiyuan 030006, China |
| |
| Abstract: | The cationic di-μ-hydroxo dinuclear complexes of molybdenocene and tungstenocene Cp2M(μ-OH)2MCp2]+ (Cp = η-C5H5; M = Mo or W) react with tropolone to afford corresponding tropolonato complexes Cp2M(trop)]+ (trop = C7H5O2). The products were investigated by IR, 1H NMR, and 13C NMR spectroscopy as well as by X-ray crystallography (M = W). The structure shows that the central metal is surrounded by a distorted tetrahedral array of the two centers of cyclopentadienyl ligands and the two oxygen atoms of tropolonato ligand. The reaction has been extended to the synthesis of calix4]arene receptor functionalized at the 1,3-positions of the upper rim with two tropolonato-molybdenocene centers. |
| |
| Keywords: | Molybdenocene Tungstenocene Tropolone Calix[4]arene |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
