| Na2O＊B2O3＊V2O5玻璃的^51V核磁共振研究 |
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| 引用本文： | 徐曙,邬学文.Na2O＊B2O3＊V2O5玻璃的^51V核磁共振研究[J].波谱学杂志,1990,7(3):345-348. |
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| 作者姓名： | 徐曙 邬学文 |
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| 作者单位： | 华东师范大学分析测试中心
(徐曙)，华东师范大学分析测试中心(邬学文) |
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| 摘 要： | 本文应用~(51)V核磁共振研究了Na_2O·B_2O_3·V_2O_5玻璃的结构,结果表明: 1)R<0.5+K时,随着R的增加,依次形成NaV_3O_8、NaVO_3和NaVO_3-B结构。 2)R=0.5+K时,全部的V_2O_5转化为NaVO_3和NaVO_3-B结构。 3)R>0.5+K时,由于硼酸盐中非桥氧数的增加,NaVO_3-B结构逐步消失,并推测NaVO_3-B结构中的B原子为四配位结构。
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| 关 键 词： | 玻璃 NMR 硼酸盐 钒酸盐 |
THE ~(51)V NMR STUDIES ON Na_2O-B_2O_3-V_2O_3 GLASS SYSTEM |
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| Xu Shu and Wu Xuewen.THE ~(51)V NMR STUDIES ON Na_2O-B_2O_3-V_2O_3 GLASS SYSTEM[J].Chinese Journal of Magnetic Resonance,1990,7(3):345-348. |
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| Authors: | Xu Shu and Wu Xuewen |
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| Abstract: | The structure of Na2O-B2O3-V2O5 glasses is studied by the 51V NMR technique. The results show that,
1) as R<0.5+K, the NaV3O4, NaVO3 and NaVO3-B units are formed successively with the increasing of R.
2) as R=0.5 + K, all the V2O, units are transformed into NaVO3 and NaVO3-B units.
3) as R >0.5 + K, the number of NaVO3-B units decreases accordingly as the increasing of nonbridge-oxygen atoms in borate units, and it can be guessed that the boron atoms in NaVO3-B are 4-coordinated. |
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| Keywords: | Glass Borate Vanadate NMR |
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