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Titlebook: NMR — From Spectra to Structures; An Experimental Appr Terence N. Mitchell,Burkhard Costisella Textbook 20041st edition Springer-Verlag Ber

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發(fā)表于 2025-3-23 10:23:18 | 只看該作者
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發(fā)表于 2025-3-23 14:40:47 | 只看該作者
1D ExperimentsHydrogen has two NMR-active nuclei: .H, always known as “the proton” (thus “proton NMR”), making up 99.98%, and .H, normally referred to as D for deuterium.
13#
發(fā)表于 2025-3-23 21:54:17 | 只看該作者
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發(fā)表于 2025-3-23 22:32:08 | 只看該作者
Worked ExampleFirst use the molecular formula and the equation given above to calculate the number of double bond equivalents. In this case (remembering to treat bromine as equivalent to hydrogen) the value is 1. The infrared spectrum shows a band at 1641 cm., which probably represents the C=C bond stretch, but in this case there . only be a C=C bond present!
15#
發(fā)表于 2025-3-24 04:12:55 | 只看該作者
ProblemsFor solving the problems, please refer to the worked example (see p.64) and the detailed data given in the headers of each problem.
16#
發(fā)表于 2025-3-24 09:30:57 | 只看該作者
Introductiong with liquid or solid samples; the combination of high resolution and magic angle spinning (HR/MAS) of solid samples provides a wealth of structural information which is complementary to that obtained by X-ray crystallography. The same suite of techniques, slightly adapted, is now available to thos
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發(fā)表于 2025-3-24 12:46:27 | 只看該作者
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發(fā)表于 2025-3-24 14:53:58 | 只看該作者
Terence N. Mitchell,Burkhard Costisellat will be useful to musicians and composers who exploit computer-based tools; arrangers, musicologists, and others interested in musical analysis; and those interested in the way the ear works,978-1-4471-6049-6978-1-84628-640-7
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發(fā)表于 2025-3-24 19:44:26 | 只看該作者
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