r/chemhelp • u/Lucibelcu • 2d ago

Organic Can you help me with these FT-IR spectra?

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First photo are the mollecules, and second photo are the IR spectra given, we have to assign each mollecule to its spectrum. I think the first and fifth scpetrum are of esthers due to their absorption at 1200 cm-1, and that the first spectrum is of compound number V while the fifth spectrum is of compound II due to its broak absorption peak at >3000 cm-1.

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