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Eine höhere Auflösung in 2D‐NMR‐Spektren resultiert aus dem Zusammenfallen von 2D‐Multiplett‐ zu 2D‐Singulettsignalen dank der Kombination von 2D‐Techniken mit homonuklearer Breitbandentkopplung und Kovarianzverfahren (siehe Bild). Die Methode sollte sowohl bei der manuellen wie auch der automatisierten Strukturbestimmung von Nutzen sein.
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