Assigning powders to crystal structures by high-resolution (1)H-(1)H double quantum and (1)H-(13)C J-INEPT solid-state NMR spectroscopy and first principles computation. A case study of penicillin G.
Assigning powders to crystal structures by high-resolution (1)H-(1)H double quantum and (1)H-(13)C J-INEPT solid-state NMR spectroscopy and first principles computation. A case study of penicillin G.
复制标题
通过高分辨率 (1)H-(1)H 双量子和 (1)H-(13)C J-INEPT 固态 NMR 光谱和第一原理计算将粉末分配给晶体结构。
DOI:
10.1039/b605227d
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Mifsud N
中科院分区:
文献类型:
--
作者:
Mifsud N
We show how powder samples at natural isotopic abundance can be assigned to crystal structures by using high-resolution proton and carbon-13 solid-state NMR spectra in combination with first principles calculations. Homonuclear proton double-quantum spectra in combination with through-bond proton–carbon HSQC spectra are used to assign the NMR spectra. We then show that the proton chemical shifts can be included in the process of assigning the spectra to a crystal structure using first principles calculations. The method is demonstrated on the K salt of penicillin G.
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