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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Structural studies of zinc polyphosphate glasses by nuclear magnetic resonance
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Structural studies of zinc polyphosphate glasses by nuclear magnetic resonance

机译：核磁共振法研究聚磷酸锌玻璃的结构

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Nuclear magnetic resonance (NMR) spectroscopy of solids and of liquids was used to study the structure of xZnO + (1 - x)P2O5 glasses prepared from a glass melt in the composition range 0.35 less than or equal to x less than or equal to 0.70. Relative concentrations of Q(n) units in the solid glasses have been compared with the liquid NMR spectra and with the predictions based on the reorganization theory. Disproportionation reactions in glass liquids of meta- and pyrophosphates are evident. Anisotropies of chemical shift tensor for all phosphorus units are given. Structural changes associated with CSA parameters, including the presence of rings and chains are discussed. Both solid and liquid state NMR spectra show that ultraphosphate glasses consist mainly of ring structures, while only chains are present in metaphosphates. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 35]
机译：固体和液体的核磁共振（NMR）光谱用于研究由玻璃熔体制备的xZnO +（1-x）P2O5玻璃的结构，其组成范围小于或等于x小于或等于0.75 x 。已将固体玻璃中Q（n）单元的相对浓度与液体NMR光谱以及基于重组理论的预测进行了比较。在偏磷酸盐和焦磷酸盐的玻璃液体中歧化反应是明显的。给出了所有磷单元的化学位移张量的各向异性。讨论了与CSA参数相关的结构变化，包括环和链的存在。固态和液态NMR光谱均显示，超磷酸盐玻璃主要由环结构组成，而偏磷酸盐中仅存在链。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：35]

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