Precise NMR Method for Titering Organometal Reagents

Precise NMR Method for Titering Organometal Reagents
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DOI:
10.1021/acs.orglett.1c01006
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发表时间:
2021-04-19
期刊:
影响因子:
5.2
通讯作者:
Ghiviriga, Ion
Ghiviriga, Ion
中科院分区:
化学1区
文献类型:
--
作者:
Jakhar, Vineet K.;Johnson, Eric C.;Ghiviriga, Ion

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通过获得纯净试剂溶液的核磁共振光谱,以及在另一个核磁共振管中获得纯净参比溶剂的核磁共振光谱,可以方便地确定有机金属试剂的浓度。PULCON关系,在所有主要的核磁共振软件中实现,然后用于计算试剂的浓度,基于光谱中的绝对积分,参照物的已知浓度,以及积分下的质子数。
The concentration of organometal reagents can be conveniently determined by obtaining the NMR spectra of the neat reagent solution, and, in a second NMR tube, of a neat reference solvent. The PULCON relationship, implemented in all major NMR software, is then used to calculate the concentration of the reagent based on the absolute integrals in the spectra, the known concentration of the reference, and the number of protons under the integrals.