| 过渡金属取代的钨铝杂多配合物的制备、表征和性质 |
| Synthesis, Characterization and Properties of Transition Elements Substituted Aluminoheteropolytungstates |
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| 摘要: 用分步设计法合成了以铝为中心原子的过渡元素与钨的三元杂多配合物,经ICP、TG分析确定其化学式为K4，6，7[AlM(OH2)W11O39]·xH2O(M=V5+、Cr3+、Mn2+、Fe3+、Co2+、Ni2+、Cu2+、Zn2+、Cd2+)。采用IR、UV、XRD、183W和27Al NMR等对配合物的结构进行了表征,表明配合物具有Keggin结构；循环伏安法对该系列配合物的氧化还原性质研究表明,其氧化还原过程为不可逆的两电子还原,配合物的磁化率测试均表现为顺磁性,还对其热稳定性进行了讨论。 |
| 关键词: 杂多配合物 过渡元素 氧化还原性 磁性 热稳定性 |
| 基金项目: |
| Abstract: Tri-basic heteropolytungstates containing transition elements with Al as central atom have been synthesized by stepwise design. The molecular formules were confirmed as K4,6,7[AlM(OH2)W11O39]·xH2O(M=V5+, Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+) by ICP and TG. Their structures were characterized by IR, UV, XRD,183W NMR and 27Al NMR. The results show that the complexes were of Keggin structure. The redox behaviors of these complexes were investigated by cyclic voltammetry as irreversible processes. The magnetic data suggest that the complexes are all paramagnetic. The thermostabilities for the complexes are also discussed. |
| Keywords: heteropolyoxometallates transition element redox property magnetic thermostability |
| 投稿时间：2004-10-10 修订日期：2005-01-10 |
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| 苏占华,徐学勤,马慧媛,唐晓梅,周百斌.过渡金属取代的钨铝杂多配合物的制备、表征和性质[J].无机化学学报,2005,21(5):647-652. |
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