77Se and125Te nuclear magnetic resonance investigations in II–VI and IV–VI compounds
77Se and125Te nuclear magnetic resonance investigations in II–VI and IV–VI compounds
复制标题
II-VI 和 IV-VI 化合物中 77Se 和 125Te 核磁共振研究
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
A. Nolle
中科院分区：
文献类型：
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作者：
W. Koch;O. Lutz;A. Nolle
77se或125te的核磁共振信号被测量在II-VI和iv - vi化合物ZnSe， CdSe, HgSe， PbSe和ZnTe， CdTe, HgTe， PbTe相对于Na2SeO3或K2TeO3水溶液。77se的化学位移约为- 600 ppm， 125te的化学位移约为- 2700 ppm，与理论计算结果进行了比较。在六方CdSe中发现了77se的各向异性化学位移，而在CdTe和PbTe中发现了125te的谱线分裂。77se和125te核磁共振信号的线宽随着反离子原子序数的增加而增加。
The NMR signals of77Se or125Te have been measured in II–VI and IV–VI-compounds ZnSe, CdSe, HgSe, PbSe and ZnTe, CdTe, HgTe, PbTe relative to aqueous solutions of Na2SeO3 or K2TeO3. The chemical shifts of about −600 ppm for77Se and of about −2700 ppm for125Te have been compared with theoretical calculations. For77Se in hexagonal CdSe an anisotropic chemical shift has been observed and for125Te in CdTe and PbTe linesplittings have been found. The linewidths of the77Se and125Te NMR signals increase with the atomic number of the counterions.