| 混合价缺位磷钨杂多化合物的光合成和磁性质 |
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| 引用本文： | 刘惠章 邵倩芬. 混合价缺位磷钨杂多化合物的光合成和磁性质[J]. 复旦学报(自然科学版), 1999, 38(6): 605-610 |
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| 作者姓名： | 刘惠章 邵倩芬 |
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| 摘 要： | 用光合成的方法得到了两个混合价的缺位磷钨杂多化合物,其缺位分别位于“带”和“帽”的位置,这两个混合价的杂多化合物仍然保持了其母体化合物Ｄａｗｓｏｎ的结构类型。在这两个混合价杂多化合物中,由于缺位位置不同造成的“蓝电子”离域情况的变化,导致了其在磁性质上的差异。
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| 关 键 词： | 光合成 磷钨杂多化合物 磁性质 混合价 |
Photosyntheses and Magnetic Properties of the Mixed-valence Lacunary Tungstodiphosphates |
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| Liu Hui-zhang, LI Pei, JIN Songlin, XU Jingyu,,LIN Xingrong, XIE Gaoyang, SHAO Qian-feng. Photosyntheses and Magnetic Properties of the Mixed-valence Lacunary Tungstodiphosphates[J]. Journal of Fudan University(Natural Science), 1999, 38(6): 605-610 |
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| Authors: | Liu Hui-zhang LI Pei JIN Songlin XU Jingyu LIN Xingrong XIE Gaoyang SHAO Qian-feng |
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| Affiliation: | 1. Department of Chemistry; 2. Research center of Analysis and Measurement |
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| Abstract: | Two mixed-valence lacunary tungstodiphosphates with the lacuna located in "belt" and "cap" posi-tions were photosynthesized. These mixed-valence species retains the Dawson structure. The "blue" electron delocalized over the belt W atoms in lacunary species was analogous to that of the perfect species. It was found that a1-[P2W17O61]11- was more paramagnetic than a2-[P2W17O61]11-, due to the fact that the lacuna in "belt" po-sition did not transmit the circulating "blue" electron well and blocked the ring current somewhat, thus reduced the effectiveness of its ring current in diminishing paramagnetism. |
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| Keywords: | photosynthesis lacunary tungstodiphosphate magnetic property |
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