1,4-二碘苯的场逐步扫描固态127I核磁共振。

IF 1.8 3区 化学 Q4 CHEMISTRY, PHYSICAL
Kazuhiko Yamada , Tatsuo Kaiho
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引用次数: 0

摘要

介绍了应用于塞曼微扰NQR区域的1,4-二碘苯C6H4I2的场逐步扫描固态127I核磁共振实验。在温度为90 K、谐振频率为271 MHz的条件下,在2.5 T至0的磁场范围内进行了一系列QCPMG测量,测量间隔为12 mT。光谱模拟的数值计算涉及zeeman -四极哈密顿量的对角化,得到四极耦合常数(CQ) = 1863(5) MHz,不对称参数(ηQ) = 0.04(2)。在T = 90 K时观测到127I NQR光谱,与上述实验结果一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Field-stepwise-swept solid-state 127I NMR of 1,4-diiodobenzene

Field-stepwise-swept solid-state 127I NMR of 1,4-diiodobenzene

Field-stepwise-swept solid-state 127I NMR experiments of 1,4-diiodobenzene, C6H4I2, applied to a Zeeman-perturbed NQR region, have been presented. A series of QCPMG measurements is performed at T = 90 K with resonant frequencies of 271 MHz in the range of magnetic fields from 2.5 T to zero with the interval of 12 mT. The spectral simulation, in which a numerical calculation involves the diagonalization of the combined Zeeman-quadrupolar Hamiltonian, provides quadrupole coupling constant (CQ) = 1863(5) MHz and the asymmetry parameter (ηQ) = 0.04(2). The 127I NQR spectrum is observed at T = 90 K, which is consistent in the above experimental results.

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来源期刊
CiteScore
5.30
自引率
9.40%
发文量
42
审稿时长
72 days
期刊介绍: The journal Solid State Nuclear Magnetic Resonance publishes original manuscripts of high scientific quality dealing with all experimental and theoretical aspects of solid state NMR. This includes advances in instrumentation, development of new experimental techniques and methodology, new theoretical insights, new data processing and simulation methods, and original applications of established or novel methods to scientific problems.
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