Organic–inorganic hybrid material as zwitterion: Synthesis and structure of terminal ammonium ions-containing organosilyl species supported on mono-lacunary Dawson polyoxometalate |
| |
| Authors: | Takeshi Hasegawa Yuhki Kasahara Shoko Yoshida Takayuki Kurashina Shotaro Aoki Kenji Yoza Kenji Nomiya |
| |
| Affiliation: | aR&D Center, Kimoto Co. Ltd., Suzuya, Chuou-ku, Saitama 338-0013, Japan;bDepartment of Materials Science, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan;cNihon Bruker AXS, Kanagawa-ku, Moriyacho 3-9 A6F, Yokohama 221-0022, Japan |
| |
| Abstract: | The title compound 1 with a formula of (Bu4N)4α2-P2W17O61{Me3N+(CH2)3Si}2O] · CH3CN was obtained in 77.1% (4.21 g scale) yield by a 1:2 molar-ratio reaction of the mono-lacunary Dawson polyoxometalate (POM) P2W17O61]10− with N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride (Me3N(CH2)3Si(OMe)3]Cl) in mixed water/acetonitrile solution under acidic conditions and unequivocally characterized with complete elemental analysis, thermogravimetric and differential thermal analyses (TG/DTA), FTIR, solution (31P, 1H, 13C and 29Si) NMR and X-ray crystallography. Compound 1 contained two types of the ammonium cations, i.e., the counterions Bu4N+ (free cations) and the terminal quaternary ammonium ions (bound cations) which are connected to the POM through the organosilyl groups. |
| |
| Keywords: | Organic– inorganic hybrid Dawson polyoxometalate Organosilyl group Free and bound ammonium cations Zwitterion |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
