73Ge NMR Spectroscopy of Organogermanium Compounds
73Ge NMR Spectroscopy of Organogermanium Compounds
复制标题
有机锗化合物的 73Ge NMR 谱
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
T. Takayama
中科院分区：
文献类型：
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作者：
Y. Takeuchi;T. Takayama
摘要综述了73Ge核磁共振波谱的最新进展。在导言(第1节)之后，第2节描述了最近确定的各种有机锗化合物的化学位移和线宽，这些化合物从正常(四价)到高配位(最多七价)物种。讨论了线宽作为超配位证据的作用。在第三节中，详细讨论了耦合常数、弛豫时间和驰豫机制，表明在某些情况下涉及到的不是四极机制。在最后一节中，介绍了高分辨率的固体73Ge核磁共振波谱，这是以前的综述中没有涉及到的。
Abstract Recent advances in 73 Ge NMR spectroscopy are reviewed. Following the introduction (Section 1), Section 2 describes recently determined chemical shifts and linewidths for a variety of organogermanium compounds which range from normal (tetravalent) to hypercoordinated (up to heptavalent) species. The role of linewidth as evidence for hypercoordination is discussed. In Section 3, coupling constants, relaxation times and relaxation mechanisms are discussed in detail, showing that in some cases a mechanism other than quadrupolar is involved. In the last section, high-resolution solid-state 73 Ge NMR spectroscopy is covered which has not been treated in previous reviews.