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9Be nuclear magnetic resonance spectroscopy trends in discrete complexes: an update
Zeitschrift für Naturforschung B ( IF 0.8 ) Pub Date : 2020-05-26 , DOI: 10.1515/znb-2020-0007
Jenna K. Buchanan 1 , Paul G. Plieger 1
Affiliation  

Abstract 9Be solution NMR spectroscopy is a useful tool for the characterisation of beryllium complexes. An updated comprehensive table of the 9Be NMR chemical shifts of beryllium complexes in solution is presented. The recent additions span a greater range of chemical shifts than those previously reported, and more overlap is observed between the chemical shift regions of four-coordinate complexes and those with lower coordination numbers. Four-coordinate beryllium species have smaller ω1/2 values than the two- and three-coordinate species due to their higher order symmetry. In contrast to previous studies, no clear relationship is observed between chemical shift and the size and number of chelate rings.

中文翻译:

9Be 离散复合体中的核磁共振波谱趋势:更新

摘要 9Be 溶液核磁共振光谱是表征铍配合物的有用工具。提供了溶液中铍配合物的 9Be NMR 化学位移的更新综合表。最近添加的化学位移范围比以前报道的更大,并且在四配位配合物的化学位移区域和具有较低配位数的化学位移区域之间观察到更多的重叠。由于四配位铍物种的高阶对称性,它们的 ω1/2 值小于二配位和三配位物种。与之前的研究相比,在化学位移与螯合环的大小和数量之间没有观察到明确的关系。
更新日期:2020-05-26
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