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Chemistry · L5 · Advanced NMR: 2D Techniques & Coupling Analysis · flowchart

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by @openstemUpdated Chemistry
Complex molecule:overlapping 1D signalsWhich connectivitydo you need?Run COSYAxes: ¹H vs ¹HRun HSQCAxes: ¹H vs ¹³COff-diagonal cross-peaksmark coupled proton pairsCross-peaks mark eachproton's attached carbonTrace connectivity acrossthe proton skeletonAssign CH, CH2, or CH3to each carbonCombine COSY and HSQCinto one structure mapH-H, 2 to 3 bondsDirect C-H, 1 bond

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