Rational Construction of Porous Polymeric Cadmium Ferrocene-1,1′-disulfonates for Transition Metal Ion Exchange and Sorption
| Autor: | Liwei Mi, Hong Xu, Fan Yaoting, Seik Weng Ng, Huayun Han, Zhiyong Song, Hong-Wei Hou |
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| Rok vydání: | 2007 |
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| Zdroj: | Crystal Growth & Design. 7:2553-2561 |
| ISSN: | 1528-7505 1528-7483 |
| Popis: | Porous pillared bilayer open coordination polymer {[Cd(bpp)2(O3SFcSO3)]·(CH3OH)2 ·(H2O)6}n 1 (Fc = ferrocene) and 3D porous coordination polymer {[Cd(bpy)2(O3SFcSO3)]·(CH3OH)4}n 2 have been assembled from Cd(NO3)2, ferrocene-1,1′-disulfonate, and bridging ligands 1,3-bis(4-pyridyl)propane (bpp) or 4,4′-bipyridine (bpy). Both of them show very special adsorption properties to copper salts. Along with the increase in the solution concentration of Cu(NO3)2, the percentage of adsorbed copper ions falls, but the percentage of exchanged central cadmium ions and the amount of adsorbed copper ions rises. In dilute solution, there mainly exists metal ion sorption, whereas both ion sorption and exchange are in charge of the whole progress in strong solution. Meanwhile, such materials could be used as ideal metal ion adsorbent toward some other metal cations, including of Pb2+, Zn2+, Mn2+, Co2+, Ni2+. However, when all these metal ions coexist in a mixture solution, the two ferrocenyl complexes selectively adsorb la... |
| Databáze: | OpenAIRE |
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