| 一系列具有CHA结构的过渡金属取代磷酸铝的合成与表征 | |
| Syntheses and Characterizations of a Series of Transition Metal-substituted Aluminophosphates with CHA Topology | |
| 摘要: | |
| 关键词: 水热合成 磷酸铝 CHA结构 过渡金属取代 | |
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| Abstract: Open-framework metal-substituted aluminophosphates have attracted more attentions owing to their interesting structural chemistry and potential applications in catalysis and ion exchange. A series of metal-substituted aluminophosphates with CHA topology (denoted as MeAPO-CHA (Me=Mn, Zn and Co)) have been prepared under the hydrothermal conditions. XRD shows that they possess the same topology. MnAPO-CHA (Mn2Al4(PO4)6[Ni(DETA)2]) crystallizes in the space group R3 with a=1.387 0(2) nm, c=1.522 2(2) nm, V=2.536 0(7) nm3, Z=3. The linkages of AlO4(MnO4) tetrahedra and PO4 tetrahedra through vertex oxygen atoms form the open-framework [Mn2Al4(PO4)6]2-. Notably, the Mn/Al ratio in MnAPO-CHA is 1/2 that Al and Mn atoms share the same position, which is the highest as far as we have known in compounds with CHA topology. Self-assembled nickel complexes locate in the CHA-cages to neutralize the negative charge of the framework. CCDC: 688179. | |
| Keywords: hydrothermal synthesis aluminophosphate CHA structure transition metal-substitution | |
| 摘要点击次数: 1828 | |
| 全文下载次数: 1860 | |
| 段芳正,李激扬,丁 红,于吉红,徐如人.一系列具有CHA结构的过渡金属取代磷酸铝的合成与表征[J].无机化学学报,2008,24(8):1343-1346. | |
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