Structural role of fluoride in aluminophosphate sol-gel glasses: High-resolution double-resonance NMR studies
文献类型：期刊论文
| 作者 | Zhang Long ; de Araujo Carla C. ; Eckert Hellmut |
| 刊名 | j. phys. chem. b
 |
| 出版日期 | 2007 |
| 卷号 | 111期号:35页码:10402 |
| 关键词 | FLUOROPHOSPHATE GLASSES STATE NMR PHOSPHATE-GLASSES QUADRUPOLAR NUCLEI MULTISPIN SYSTEMS UP-CONVERSION SPECTROSCOPY REDOR DISTANCES SPECTRA |
| ISSN号 | 1520-6106 |
| 中文摘要 | the local structure of na-al-p-o-f glasses, prepared by a novel sol-gel route, was extensively investigated by advanced solid-state nmr techniques. al-21{f-19} rotational echo double resonance (redor) results indicate that the f incorporated into aluminophosphate glass is preferentially bonded to octahedral al units and results in a significant increase in the concentration of six-coordinated aluminum. the extent of al-f and al-o-p connectivities are quantified consistently by analyzing al-27{p-31} and al-21{f-19} redor nmr data. two distinct types of fluorine species were identified and characterized by various f-19{al-27}, f-19{na-23}, and f-19{p-31} double resonance experiments, which were able to support peak assignments to bridging (al-f-al, -140 ppm) and terminal (al-f, -170 ppm) units. on the basis of the detailed quantitative dipole-dipole coupling information obtained, a comprehensive structural model for these glasses is presented, detailing the structural speciation as a function of composition. |
| 学科主题 | 光学材料;光学玻璃 |
| 收录类别 | EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249169800010 |
| 公开日期 | 2009-09-24 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/4949]  |
| 专题 | 上海光学精密机械研究所_高功率激光单元技术研发中心 |
| 推荐引用方式 GB/T 7714 | Zhang Long,de Araujo Carla C.,Eckert Hellmut. Structural role of fluoride in aluminophosphate sol-gel glasses: High-resolution double-resonance NMR studies[J]. j. phys. chem. b,2007,111(35):10402, 10412. |
| APA | Zhang Long,de Araujo Carla C.,&Eckert Hellmut.(2007).Structural role of fluoride in aluminophosphate sol-gel glasses: High-resolution double-resonance NMR studies.j. phys. chem. b,111(35),10402. |
| MLA | Zhang Long,et al."Structural role of fluoride in aluminophosphate sol-gel glasses: High-resolution double-resonance NMR studies".j. phys. chem. b 111.35(2007):10402. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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